7 Conducted receiver characteristics (IAB-DU and IAB-MT)

38.176-13GPPIntegrated Access and Backhaul (IAB) conformance testingNRPart 1: conducted conformance testingRelease 17TS

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

7.1 General

7.2 Reference sensitivity level

7.2.1 Definition and applicability

The reference sensitivity power level P_REFSENS is the minimum mean power received at the TAB connector for IAB type 1-H at which a throughput requirement shall be met for a specified reference measurement channel.

7.2.2 Minimum requirement

The minimum requirement for IAB type 1-H:

For IAB-DU is in TS 38.174 [2], clause 7.2.1.

For IAB-MT is in TS 38.174 [2], clause 7.2.2.

7.2.3 Test purpose

To verify that for each IAB type 1-H TAB connector at the reference sensitivity level the throughput requirement shall be met for a specified reference measurement channel.

7.2.4 Method of test

7.2.4.1 Initial conditions

Test environment:

– Normal; see annex B.2.

– Extreme, see annexes B.3 and B.5.

RF channels to be tested for single carrier: B, M and T; see clause 4.9.1.

Under extreme test environment, the test shall be performed on each of B, M and T under extreme power supply conditions as defined in annex B.5.

NOTE: Tests under extreme power supply conditions also test extreme temperatures.

7.2.4.2 Procedure

The minimum requirement is applied to all connectors under test.

The procedure is repeated until all TAB connectors necessary to demonstrate conformance have been tested; see clause 7.1.

1) Connect the connector under test to measurement equipment as shown in annex D.2.1.

2) Start the signal generator for the wanted signal to transmit the Fixed Reference Channels for reference sensitivity in clause 7.2.5 and according to annex A.1.

3) Set the signal generator for the wanted signal power as specified in clause 7.2.5.

4) Measure the throughput according to annex A.1.

In addition, for a multi-band connector, the following steps shall apply:

5) For multi-band connector and single band tests, repeat the steps above per involved band where single band test configurations and test models shall apply with no carrier activated in the other band.

7.2.5 Test requirements

7.2.5.1 Test requirements for IAB-DU

The throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel as specified in annex A.1 with parameters specified in table 7.2.5.1-1 for Wide Area IAB-DU, in table 7.2.5.1-2 for Medium Range IAB-DU and in table 7.2.5.1-3 for Local Area OAB-DU.

Table 7.2.5.1-1: NR Wide Area IAB-DU reference sensitivity levels

IAB-DU channel	Sub-carrier	Reference	Reference sensitivity power level, P_REFSENS (dBm)
bandwidth (MHz)	spacing (kHz)	measurement channel	f ≤ 3.0 GHz	3.0 GHz < f ≤ 4.2 GHz	4.2 GHz < f ≤ 6.0 GHz
10, 15	15	G-FR1-A1-1 (Note 1)	-101	-100.7	-100.5

10, 15	30	G-FR1-A1-2 (Note 1)	-101.1	-100.8	-100.6
10, 15	60	G-FR1-A1-3 (Note 1)	-98.2	-97.9	-97.7
20, 25, 30, 40,	15	G-FR1-A1-4 (Note 1)	-94.6	-94.3	-94.1
50
20, 25, 30, 40, 50, 60, 70, 80, 90, 100	30	G-FR1-A1-5 (Note 1)	-94.9	-94.6	-94.4
20, 25, 30, 40, 50, 60, 70, 80, 90, 100	60	G-FR1-A1-6 (Note 1)	-95	-94.7	-94.5
NOTE 1: P_REFSENS is the power level of a single instance of the reference measurement channel. This requirement shall be met for each consecutive application of a single instance of the reference measurement channel mapped to disjoint frequency ranges with a width corresponding to the number of resource blocks of the reference measurement channel each, except for one instance that might overlap one other instance to cover the full IAB-DU channel bandwidth.

Table 7.2.5.1-2: NR Medium Range IAB-DU reference sensitivity levels

IAB-DU channel	Sub-carrier	Reference	Reference sensitivity power level, P_REFSENS (dBm)
bandwidth (MHz)	spacing (kHz)	measurement channel	f ≤ 3.0 GHz	3.0 GHz < f ≤ 4.2 GHz	4.2 GHz < f ≤ 6.0 GHz
10, 15	15	G-FR1-A1-1 (Note 1)	-96	-95.7	-95.5

10, 15	30	G-FR1-A1-2 (Note 1)	-96.1	-95.8	-95.6
10, 15	60	G-FR1-A1-3 (Note 1)	-93.2	-92.9	-92.7
20, 25, 30, 40,	15	G-FR1-A1-4 (Note 1)	-89.6	-89.3	-89.1
50
20, 25, 30, 40, 50, 60, 70, 80, 90, 100	30	G-FR1-A1-5 (Note 1)	-89.9	-89.6	-89.4
20, 25, 30, 40, 50, 60, 70, 80, 90, 100	60	G-FR1-A1-6 (Note 1)	-90	-89.7	-89.5
NOTE 1: P_REFSENS is the power level of a single instance of the reference measurement channel. This requirement shall be met for each consecutive application of a single instance of the reference measurement channel mapped to disjoint frequency ranges with a width corresponding to the number of resource blocks of the reference measurement channel each, except for one instance that might overlap one other instance to cover the full IAB-DU channel bandwidth.

Table 7.2.5.1-3: NR Local Area IAB-DU reference sensitivity levels

IAB-DU channel	Sub-carrier	Reference	Reference sensitivity power level, P_REFSENS (dBm)
bandwidth (MHz)	spacing (kHz)	measurement channel	f ≤ 3.0 GHz	3.0 GHz < f ≤ 4.2 GHz	4.2 GHz < f ≤ 6.0 GHz
10, 15	15	G-FR1-A1-1 (Note 1)	-93	-92.7	-92.5

10, 15	30	G-FR1-A1-2 (Note 1)	-93.1	-92.8	-92.6
10, 15	60	G-FR1-A1-3 (Note 1)	-90.2	-89.9	-89.7
20, 25, 30, 40,	15	G-FR1-A1-4 (Note 1)	-86.6	-86.3	-86.1
50
20, 25, 30, 40, 50, 60, 70, 80, 90, 100	30	G-FR1-A1-5 (Note 1)	-86.9	-86.6	-86.4
20, 25, 30, 40, 50, 60, 70, 80, 90, 100	60	G-FR1-A1-6 (Note 1)	-87	-86.7	-86.5
NOTE 1: P_REFSENS is the power level of a single instance of the reference measurement channel. This requirement shall be met for each consecutive application of a single instance of the reference measurement channel mapped to disjoint frequency ranges with a width corresponding to the number of resource blocks of the reference measurement channel each, except for one instance that might overlap one other instance to cover the full IAB-DU channel bandwidth.

7.2.5.2 Test requirements for IAB-MT

The throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel as specified in annex A.1 with parameters specified in table 7.2.5.2-1 for Wide Area IAB-MT and in table 7.2.5.2-2 for Local Area IAB-MT.

Table 7.2.5.2-1: Wide Area IAB-MT reference sensitivity levels

IAB-MT channel bandwidth (MHz)	Sub-carrier spacing (kHz)	Reference measurement channel	Reference sensitivity power level, P_REFSENS (dBm)
IAB-MT channel bandwidth (MHz)	Sub-carrier spacing (kHz)	Reference measurement channel	f ≤ 3.0 GHz	3.0 GHz < f ≤ 4.2 GHz	4.2 GHz < f ≤ 6.0 GHz
10, 15	30	G-FR1-A1-22 (Note 1)	-101.3	-101	-100.8
10, 15	60	G-FR1-A1-23 (Note 1)	-98.3	-98	-97.8
20, 25, 30, 40, 50, 60, 70, 80, 90, 100	30	G-FR1-A1-25 (Note 1)	-94.7	-94.4	-94.2
20, 25, 30, 40, 50, 60, 70, 80, 90, 100	60	G-FR1-A1-26 (Note 1)	-94.9	-94.6	-94.4
NOTE 1: P_REFSENS is the power level of a single instance of the reference measurement channel. This requirement shall be met for each consecutive application of a single instance of the reference measurement channel mapped to disjoint frequency ranges with a width corresponding to the number of resource blocks of the reference measurement channel each, except for one instance that might overlap one other instance to cover the full IAB-MT channel bandwidth.

Table 7.2.5.2-2: Local Area IAB-MT reference sensitivity levels

IAB-MT channel bandwidth (MHz)	Sub-carrier spacing (kHz)	Reference measurement channel	Reference sensitivity power level, P_REFSENS (dBm)
IAB-MT channel bandwidth (MHz)	Sub-carrier spacing (kHz)	Reference measurement channel	f ≤ 3.0 GHz	3.0 GHz < f ≤ 4.2 GHz	4.2 GHz < f ≤ 6.0 GHz
10, 15	30	G-FR1-A1-22 (Note 1)	-93.3	-93	-92.8
10, 15	60	G-FR1-A1-23 (Note 1)	-90.3	-90	-89.8
20, 25, 30, 40, 50, 60, 70, 80, 90, 100	30	G-FR1-A1-25 (Note 1)	-86.7	-86.4	-86.2
20, 25, 30, 40, 50, 60, 70, 80, 90, 100	60	G-FR1-A1-26 (Note 1)	-86.9	-86.6	-86.4
NOTE 1: P_REFSENS is the power level of a single instance of the reference measurement channel. This requirement shall be met for each consecutive application of a single instance of the reference measurement channel mapped to disjoint frequency ranges with a width corresponding to the number of resource blocks of the reference measurement channel each, except for one instance that might overlap one other instance to cover the full IAB-MT channel bandwidth.

7.3 Dynamic range

7.3.1 Definition and applicability

The dynamic range is specified as a measure of the capability of the receiver to receive a wanted signal in the presence of an interfering signal at the TAB connector for IAB-DU inside the received IAB-DU channel bandwidth. In this condition, a throughput requirement shall be met for a specified reference measurement channel. The interfering signal for the dynamic range requirement is an AWGN signal.

7.3.2 Minimum requirement

The minimum requirement for IAB type 1-H for IAB-DU is in TS 38.174 [2], clause 7.3.1.

7.3.3 Test purpose

To verify that the IAB type 1-H TAB connector receiver dynamic range, the relative throughput shall fulfil the specified limit.

7.3.4 Method of test

7.3.4.1 Initial conditions

Test environment: Normal; see annex B.2.

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

7.3.4.2 Procedure

The minimum requirement is applied to all connectors under test.

The procedure is repeated until all TAB connectors necessary to demonstrate conformance have been tested; see clause 7.1.

1) Connect the connector under test to measurement equipment as shown in annex D.2.2 .

2) Set the signal generator for the wanted signal to transmit as specified in table 7.3.5-1 to table 7.3.5-3 according to the appropriate IAB class.

3) Set the Signal generator for the AWGN interfering signal at the same frequency as the wanted signal to transmit as specified in table 7.3.5-1 to table 7.3.5-3 according to the appropriate IAB class.

4) Measure the throughput according to annex A.2.

In addition, for a multi-band connector, the following steps shall apply:

5) For multi-band connector and single band tests, repeat the steps above per involved band where single band test configurations and test models shall apply with no carrier activated in the other band.

7.3.5 Test requirements

The throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel as specified in annex A.2 with parameters specified in table 7.3.2-1 for Wide Area IAB-DU, in table 7.3.2-2 for Medium Range IAB-DU and in table 7.3.2-3 for Local Area IAB-DU.

Table 7.3.5-1: Wide Area IAB-DU dynamic range

IAB-DU channel bandwidth (MHz)	Subcarrier spacing (kHz)	Reference measurement channel	Wanted signal mean power (dBm)	Interfering signal mean power (dBm) / BW_Config	Type of interfering signal


10	15	G-FR1-A2-1	-70.4	-79.3	AWGN
	30	G-FR1-A2-2	-71.1
	60	G-FR1-A2-3	-68.1
15	15	G-FR1-A2-1	-70.4	-77.5	AWGN
	30	G-FR1-A2-2	-71.1
	60	G-FR1-A2-3	-68.1
20	15	G-FR1-A2-4	-64.2	-76.2	AWGN
	30	G-FR1-A2-5	-64.2
	60	G-FR1-A2-6	-64.5
25	15	G-FR1-A2-4	-64.2	-75.2	AWGN
	30	G-FR1-A2-5	-64.2
	60	G-FR1-A2-6	-64.5
30	15	G-FR1-A2-4	-64.2	-74.4	AWGN
	30	G-FR1-A2-5	-64.2
	60	G-FR1-A2-6	-64.5
40	15	G-FR1-A2-4	-64.2	-73.1	AWGN
	30	G-FR1-A2-5	-64.2
	60	G-FR1-A2-6	-64.5
50	15	G-FR1-A2-4	-64.2	-72.1	AWGN
	30	G-FR1-A2-5	-64.2
	60	G-FR1-A2-6	-64.5
60	30	G-FR1-A2-5	-64.2	-71.3	AWGN
	60	G-FR1-A2-6	-64.5
70	30	G-FR1-A2-5	-64.2	-70.7	AWGN
	60	G-FR1-A2-6	-64.5
80	30	G-FR1-A2-5	-64.2	-70.1	AWGN
	60	G-FR1-A2-6	-64.5
90	30	G-FR1-A2-5	-64.2	-69.5	AWGN
	60	G-FR1-A2-6	-64.5
100	30	G-FR1-A2-5	-64.2	-69.1	AWGN
	60	G-FR1-A2-6	-64.5
NOTE: The wanted signal mean power is the power level of a single instance of the corresponding reference measurement channel. This requirement shall be met for each consecutive application of a single instance of the reference measurement channel mapped to disjoint frequency ranges with a width corresponding to the number of resource blocks of the reference measurement channel each, except for one instance that might overlap one other instance to cover the full IAB-DU channel bandwidth.

Table 7.3.5-2: Medium Range IAB-DU dynamic range

IAB-DU channel bandwidth (MHz)	Subcarrier spacing (kHz)	Reference measurement channel	Wanted signal mean power (dBm)	Interfering signal mean power (dBm) / BW_Config	Type of interfering signal


10	15	G-FR1-A2-1	-65.4	-74.3	AWGN
	30	G-FR1-A2-2	-66.1
	60	G-FR1-A2-3	-63.1
15	15	G-FR1-A2-1	-65.4	-72.5	AWGN
	30	G-FR1-A2-2	-66.1
	60	G-FR1-A2-3	-63.1
20	15	G-FR1-A2-4	-59.2	-71.2	AWGN
	30	G-FR1-A2-5	-59.2
	60	G-FR1-A2-6	-59.5
25	15	G-FR1-A2-4	-59.2	-70.2	AWGN
	30	G-FR1-A2-5	-59.2
	60	G-FR1-A2-6	-59.5
30	15	G-FR1-A2-4	-59.2	-69.4	AWGN
	30	G-FR1-A2-5	-59.2
	60	G-FR1-A2-6	-59.5
40	15	G-FR1-A2-4	-59.2	-68.1	AWGN
	30	G-FR1-A2-5	-59.2
	60	G-FR1-A2-6	-59.5
50	15	G-FR1-A2-4	-59.2	-67.1	AWGN
	30	G-FR1-A2-5	59.8
	60	G-FR1-A2-6	-59.5
60	30	G-FR1-A2-5	-59.2	-66.3	AWGN
	60	G-FR1-A2-6	-59.5
70	30	G-FR1-A2-5	-59.2	-65.7	AWGN
	60	G-FR1-A2-6	-59.5
80	30	G-FR1-A2-5	-59.2	-65.1	AWGN
	60	G-FR1-A2-6	-59.5
90	30	G-FR1-A2-5	-59.2	-64.5	AWGN
	60	G-FR1-A2-6	-59.5
100	30	G-FR1-A2-5	-59.2	-64.1	AWGN
	60	G-FR1-A2-6	-59.5
NOTE: The wanted signal mean power is the power level of a single instance of the corresponding reference measurement channel. This requirement shall be met for each consecutive application of a single instance of the reference measurement channel mapped to disjoint frequency ranges with a width corresponding to the number of resource blocks of the reference measurement channel each, except for one instance that might overlap one other instance to cover the full IAB-DU channel bandwidth.

Table 7.3.5-3: Local Area IAB-DU dynamic range

IAB-DU channel bandwidth (MHz)	Subcarrier spacing (kHz)	Reference measurement channel	Wanted signal mean power (dBm)	Interfering signal mean power (dBm) / BW_Config	Type of interfering signal


10	15	G-FR1-A2-1	-62.4	-71.3	AWGN
	30	G-FR1-A2-2	-63.1
	60	G-FR1-A2-3	-60.1
15	15	G-FR1-A2-1	-62.4	-69.5	AWGN
	30	G-FR1-A2-2	-63.1
	60	G-FR1-A2-3	-60.1
20	15	G-FR1-A2-4	-56.2	-68.2	AWGN
	30	G-FR1-A2-5	-56.2
	60	G-FR1-A2-6	-56.5
25	15	G-FR1-A2-4	-56.2	-67.2	AWGN
	30	G-FR1-A2-5	-56.2
	60	G-FR1-A2-6	-56.5
30	15	G-FR1-A2-4	-56.2	-66.4	AWGN
	30	G-FR1-A2-5	-56.2
	60	G-FR1-A2-6	-56.5
40	15	G-FR1-A2-4	-56.2	-65.1	AWGN
	30	G-FR1-A2-5	-56.2
	60	G-FR1-A2-6	-56.5
50	15	G-FR1-A2-4	-56.2	-64.1	AWGN
	30	G-FR1-A2-5	-56.2
	60	G-FR1-A2-6	-56.5
60	30	G-FR1-A2-5	-56.2	-63.3	AWGN
	60	G-FR1-A2-6	-56.5
70	30	G-FR1-A2-5	-56.2	-62.7	AWGN
	60	G-FR1-A2-6	-56.5
80	30	G-FR1-A2-5	-56.2	-62.1	AWGN
	60	G-FR1-A2-6	-56.5
90	30	G-FR1-A2-5	-56.2	-61.5	AWGN
	60	G-FR1-A2-6	-56.5
100	30	G-FR1-A2-5	-56.2	-61.1	AWGN
	60	G-FR1-A2-6	-56.5
NOTE: The wanted signal mean power is the power level of a single instance of the corresponding reference measurement channel. This requirement shall be met for each consecutive application of a single instance of the reference measurement channel mapped to disjoint frequency ranges with a width corresponding to the number of resource blocks of the reference measurement channel each, except for one instance that might overlap one other instance to cover the full IAB-DU channel bandwidth.

7.4 In-band selectivity and blocking

7.4.1 Adjacent Channel Selectivity (ACS)

7.4.1.1 Definition and applicability

Adjacent channel selectivity (ACS) is a measure of the receiver’s ability to receive a wanted signal at its assigned channel frequency at the TAB connector for IAB type 1-H in the presence of an adjacent channel signal with a specified centre frequency offset of the interfering signal to the band edge of a victim system.

7.4.1.2 Minimum requirement

The minimum requirement for IAB type 1-H:

For IAB-DU are in TS 38.174 [2], clause 7.4.1.2.

For IAB-MT are in TS 38.174 [2], clause 7.4.1.3.

7.4.1.3 Test purpose

The test purpose is to verify the ability of the IAB receiver filter to suppress interfering signals in the channels adjacent to the wanted channel.

7.4.1.4 Method of test

7.4.1.4.1 Initial conditions

Test environment: Normal; see annex B.2.

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

IAB RF Bandwidth positions to be tested for multi-carrier (MC):

– M_RFBW for single-band connector(s), see clause 4.9.1,

– B_RFBW_T’_RFBW and B’_RFBW_T_RFBWfor multi-band connector(s), see clause 4.9.1.

7.4.1.4.2 Procedure

The minimum requirement is applied to all connectors under test.

For IAB type 1-H the procedure is repeated until all TAB connectors necessary to demonstrate conformance have been tested; see clause 7.1.

1) Connect the connector under test to measurement equipment as shown in annex D.2.3 for IAB type 1-H.

2) For IAB-DU, set the signal generator for the wanted signal to transmit as specified in table 7.4.1.5.1-1.

For IAB-MT, set the signal generator for the wanted signal to transmit as specified in table 7.4.1.5.2-1.

For simultaneous operation tests, set the signal generator for the wanted signal of IAB-DU to transmit as specified in table 7.4.1.5.1-1 and for the wanted signal of IAB-MT to transmit in table 7.4.1.5.2-1.

3) For IAB-DU, set the signal generator for the interfering signal to transmit at the frequency offset and as specified in table 7.4.1.5.1-1 and 7.4.1.5.1-2. For IAB-MT, set the signal generator for the interfering signal to transmit at the frequency offset and as specified in table 7.4.1.5.2-1 and 7.4.1.5.2-2.

For simultaneous operation tests, set the signal generator for the interfering signal to transmit at the frequency offset and as specified in table 7.4.1.5.2-1 and 7.4.1.5.2-2.

4) Measure the throughput according to annex A.1.

In addition, for a multi-band connector, the following steps shall apply:

7.4.1.5 Test requirements

7.4.1.5.1 Test requirements for IAB-DU

The throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel.

For IAB, the wanted and the interfering signal coupled to the IAB type 1-H TAB connector are specified in table 7.4.1.5.1-1 and the frequency offset between the wanted and interfering signal in table 7.4.1.5.1-2 for ACS. The reference measurement channel for the wanted signal is identified in table 7.2.5.1-1, 7.2.5.1-2 and 7.2.5.1-3 for each channel bandwidth and further specified in annex A.1. The characteristics of the interfering signal is further specified in annex F.

The ACS requirement is applicable outside the IAB RF Bandwidth or Radio Bandwidth. The interfering signal offset is defined relative to the IAB RF Bandwidth edges or Radio Bandwidth edges.

For a IAB operating in non-contiguous spectrum within any operating band, the ACS requirement shall apply in addition inside any sub-block gap, in case the sub-block gap size is at least as wide as the NR interfering signal in table 7.4.1.5.1-2. The interfering signal offset is defined relative to the sub-block edges inside the sub-block gap.

For a multi-band connector, the ACS requirement shall apply in addition inside any Inter RF Bandwidth gap, in case the Inter RF Bandwidth gap size is at least as wide as the NR interfering signal in table 7.4.1.5.1‑2. The interfering signal offset is defined relative to the IAB RF Bandwidth edges inside the Inter RF Bandwidth gap

Conducted requirement is defined at the TAB connector for IAB type 1-H.

Table 7.4.1.5.1-1: IAB ACS requirement

IAB-DU channel bandwidth of the lowest/highest carrier received (MHz)

Wanted signal mean power (dBm)

Interfering signal mean power (dBm)

10, 15, 20,
25, 30, 40, 50, 60, 70, 80, 90, 100
(Note 1)

P_REFSENS + 6 dB

Wide Area IAB-DU: -52

Medium Range IAB-DU: -47

Local Area IAB-DU: -44

NOTE 1: The SCS for the lowest/highest carrier received is the lowest SCS supported by the IAB for that bandwidth.

NOTE 2: P_REFSENS depends on the RAT. For NR, P_REFSENS depends also on the IAB-DU channel bandwidth as specified in TS 38.174 [2], table 7.2.2-1, 7.2.2-2 and 7.2.2-3.

Table 7.4.1.5.1-2: IAB ACS interferer frequency offset values

IAB-DU channel bandwidth of the lowest/highest carrier received (MHz)	Interfering signal centre frequency offset from the lower/upper IAB RF Bandwidth edge or sub-block edge inside a sub-block gap (MHz)	Type of interfering signal
10	±2.5075	5 MHz DFT-s-OFDM NR signal,
15	±2.5125	15 kHz SCS, 25 RBs
20	±2.5025
25	±9.4675
30	±9.4725
40	±9.4675
50	±9.4625	20 MHz DFT-s-OFDM NR
60	±9.4725	signal, 15 kHz SCS, 100 RBs
70	±9.4675
80	±9.4625
90	±9.4725
100	±9.4675

7.4.1.5.2 Test requirements for IAB-MT

The throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel.

For IAB-MT, the wanted and the interfering signal coupled to the IAB type 1-H TAB connector are specified in table 7.4.1.5.1-1 and the frequency offset between the wanted and interfering signal in table 7.4.1.5.2-2 for ACS. The reference measurement channel for the wanted signal is identified in table 7.2.5.2-1 and 7.2.5.2-2 for each IAB-MT channel bandwidth and further specified in annex A.1. The characteristics of the interfering signal is further specified in annex F.

The ACS requirement is applicable outside the IAB-MT RF Bandwidth or Radio Bandwidth. The interfering signal offset is defined relative to the IAB-MT RF Bandwidth edges or Radio Bandwidth edges.

For IAB-MT operating in non-contiguous spectrum within any operating band, the ACS requirement shall apply in addition inside any sub-block gap, in case the sub-block gap size is at least as wide as the NR interfering signal in table 7.4.1.5.2-2. The interfering signal offset is defined relative to the sub-block edges inside the sub-block gap.

For a multi-band connector, the ACS requirement shall apply in addition inside any Inter RF Bandwidth gap, in case the Inter RF Bandwidth gap size is at least as wide as the NR interfering signal in table 7.4.1.5.2‑2. The interfering signal offset is defined relative to the IAB-MT RF Bandwidth edges inside the Inter RF Bandwidth gap.

Minimum conducted requirement is defined at the TAB connector for IAB type 1-H.

Table 7.4.1.5.2-1: ACS requirement for IAB-MT

IAB-MT channel bandwidth of the lowest/highest carrier received (MHz)

Wanted signal mean power (dBm)

Interfering signal mean power (dBm)

10, 15, 20,
25, 30, 40, 50, 60, 70, 80, 90, 100
(Note 1)

P_REFSENS + 6 dB

Wide Area IAB-MT: -52

Local Area IAB-MT: -44

NOTE 1: The SCS for the lowest/highest carrier received is the lowest SCS supported by the IAB-MT for that bandwidth.

Table 7.4.1.5.2-2: IAB-MT ACS interferer frequency offset values

IAB-MT channel bandwidth of the lowest/highest carrier received (MHz)	Interfering signal centre frequency offset from the lower/upper IAB-MT RF Bandwidth edge or sub-block edge inside a sub-block gap (MHz)	Type of interfering signal
10	±2.5075	5 MHz CP-OFDM NR signal 15 kHz SCS, 25 RBs
15	±2.5125
20	±2.5025
25	±9.4675	20 MHz CP-OFDM NR signal 15 kHz SCS, 100 RBs
30	±9.4725
40	±9.4675
50	±9.4625
60	±9.4725
70	±9.4675
80	±9.4625
90	±9.4725
100	±9.4675

7.4.2 In-band blocking

7.4.2.1 Definition and applicability

The in-band blocking characteristics is a measure of the receiver’s ability to receive a wanted signal at its assigned channel at the TAB connector for IAB type 1-H in the presence of an unwanted interferer, which is an NR signal for general blocking or an NR signal with one resource block for narrowband blocking.

7.4.2.2 Minimum requirement

The minimum requirement for IAB type 1-H:

For IAB-DU are in TS 38.174 [2], clause 7.4.2.2.

For IAB-MT are in TS 38.174 [2], clause 7.4.2.3.

7.4.2.3 Test purpose

The test purpose is to verify the ability of the IAB receiver to withstand high-levels of in-band interference from unwanted signals at specified frequency offsets without undue degradation of its sensitivity.

7.4.2.4 Method of test

7.4.2.4.1 Initial conditions

Test environment: Normal; see annex B.2.

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

IAB RF Bandwidth positions to be tested for multi-carrier (MC) and/or CA:

– M_RFBW for single-band connector(s), see clause 4.9.1,

– B_RFBW_T’_RFBW and B’_RFBW_T_RFBW for multi-band connector(s), see clause 4.9.1.

NOTE: When testing in M (or M_RFBW), if the interferer is fully or partially located outside the supported frequency range, then the test shall be done instead in B (or B_RFBW) and T (or T_RFBW), and only with the interferer located inside the supported frequency range.

7.4.2.4.2 Procedure for general blocking

The minimum requirement is applied to all connectors under test.

For IAB type 1-H the procedure is repeated until all TAB connectors necessary to demonstrate conformance have been tested; see clause 7.1.

1) Connect the connector under test to measurement equipment as shown in annex D.2.3 for IAB type 1-H.

2) For IAB-DU, set the signal generator for the wanted signal to transmit as specified in table 7.4.2.5.1-1.

For IAB-MT, set the signal generator for the wanted signal to transmit as specified in table 7.4.2.5.2-1.

For simultaneous operation tests, set the signal generator for the wanted signal of IAB-DU to transmit as specified in table 7.4.2.5.1-1 and for the wanted signal of IAB-MT to transmit in table 7.4.2.5.2-1. 3) For IAB-DU, set the signal generator for the interfering signal to transmit at the frequency offset and as specified in table 7.4.2.5.1-1. The interfering signal shall be swept with a step size of 1 MHz starting from the minimum offset to the channel edges of the wanted signals as specified in table 7.4.2.5.1-1.

For IAB-MT, set the signal generator for the interfering signal to transmit at the frequency offset and as specified in table 7.4.2.5.2-1. The interfering signal shall be swept with a step size of 1 MHz starting from the minimum offset to the channel edges of the wanted signals as specified in table 7.4.2.5.2-1.

For simultaneous operation tests, set the signal generator for the interfering signal to transmit at the frequency offset and as specified in table 7.4.2.5.2-1.

4) Measure the throughput according to annex A.1.

In addition, for a multi-band connector, the following steps shall apply:

7.4.2.4.3 Procedure for narrowband blocking

The minimum requirement is applied to all connectors under test.

For IAB type 1-H the procedure is repeated until all TAB connectors necessary to demonstrate conformance have been tested; see clause 7.1.

1) Connect the connector under test to measurement equipment as shown in annex D.2.3 for IAB type 1-H.

2) For IAB-DU, set the signal generator for the wanted signal to transmit as specified in table 7.4.2.5.1-2.

For IAB-MT, set the signal generator for the wanted signal to transmit as specified in table 7.4.2.5.2-2.

For simultaneous operation tests, set the signal generator for the wanted signal of IAB-DU to transmit as specified in table 7.4.2.5.1-2 and for the wanted signal of IAB-MT to transmit in table 7.4.2.5.2-2.3) For IAB-DU, set the signal generator for the interfering signal to transmit at the frequency offset and as specified in table 7.4.2.5.1-2 and 7.4.2.5.1-3. Set-up and sweep the interfering RB centre frequency offset to the channel edge of the wanted signal according to table 7.4.2.5.1-3.

For IAB-MT, set the signal generator for the interfering signal to transmit at the frequency offset and as specified in table 7.4.2.5.2-2 and 7.4.2.5.2-3. Set-up and sweep the interfering RB centre frequency offset to the channel edge of the wanted signal according to table 7.4.2.5.2-3.

For simultaneous operation tests, set the signal generator for the interfering signal to transmit at the frequency offset and as specified in table 7.4.2.5.2-2 and 7.4.2.5.2-3. Set-up and sweep the interfering RB centre frequency offset to the channel edge of the wanted signal according to table 7.4.2.5.2-3.4) Measure the throughput according to annex A.1.

In addition, for a multi-band connector, the following steps shall apply:

7.4.2.5 Test requirements

7.4.2.5.1 Test requirements for IAB-DU

The throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel, with a wanted and an interfering signal coupled to IAB type 1‑H TAB connector using the parameters in tables 7.4.2.5.1-1, 7.4.2.5.1-2 and 7.4.2.5.1-3 for general blocking and narrowband blocking requirements. The reference measurement channel for the wanted signal is identified in clause 7.2.5.1 for each channel bandwidth and further specified in annex A.1. The characteristics of the interfering signal is further specified in annex E.

The in-band blocking requirements apply outside the IAB RF Bandwidth or Radio Bandwidth. The interfering signal offset is defined relative to the IAB RF Bandwidth edges or Radio Bandwidth edges.

For IAB type 1-H, the in-band blocking requirement applies from F_{UL_low} – Δf_OOB to F_{UL_high} + Δf_OOB, excluding the downlink frequency range of the operating band. The Δf_OOB for IAB type 1-H is defined in table 7.4.2.5.1-0.

Minimum conducted requirement is defined at the TAB connector for IAB type 1-H.

Table 7.4.2.5.1-0: Δf_OOB offset for NR operating bands

IAB-DU type	Operating band characteristics	Δf_OOB (MHz)
IAB type 1-H	F_{UL_high} – F_{UL_low} < 100 MHz	20
	100 MHz ≤ F_{UL_high} – F_{UL_low} ≤ 900 MHz	60
	100 MHz ≤ F_{UL_high} – F_{UL_low} ≤ 900 MHz	60

For a IAB operating in non-contiguous spectrum within any operating band, the in-band blocking requirements apply in addition inside any sub-block gap, in case the sub-block gap size is at least as wide as twice the interfering signal minimum offset in table 7.4.2.5.1-1. The interfering signal offset is defined relative to the sub-block edges inside the sub-block gap.

For a multi-band connector, the blocking requirements apply in the in-band blocking frequency ranges for each supported operating band. The requirement applies in addition inside any Inter RF Bandwidth gap, in case the Inter RF Bandwidth gap size is at least as wide as twice the interfering signal minimum offset in table 7.4.2.5.1-1.

For a IAB operating in non-contiguous spectrum within any operating band, the narrowband blocking requirement applies in addition inside any sub-block gap, in case the sub-block gap size is at least as wide as the channel bandwidth of the NR interfering signal in table 7.4.2.5.1-3. The interfering signal offset is defined relative to the sub-block edges inside the sub-block gap.

For a multi-band connector, the narrowband blocking requirement applies in addition inside any Inter RF Bandwidth gap, in case the Inter RF Bandwidth gap size is at least as wide as the NR interfering signal in table 7.4.2.5.1-3. The interfering signal offset is defined relative to the IAB RF Bandwidth edges inside the Inter RF Bandwidth gap.

Table 7.4.2.5.1-1: IAB general blocking requirement

IAB-DU channel bandwidth of the lowest/highest carrier received (MHz)	Wanted signal mean power (dBm)	Interfering signal mean power (dBm)	Interfering signal centre frequency minimum offset from the lower/upper IAB-DU RF Bandwidth edge or sub-block edge inside a sub-block gap (MHz)	Type of interfering signal
10, 15, 20	P_REFSENS + 6 dB	Wide Area IAB-DU: -43 Medium Range IAB-DU: -38 Local Area IAB-DU: -35	±7.5	5 MHz DFT-s-OFDM NR signal, 15 kHz SCS, 25 RBs
25, 30, 40, 50, 60, 70, 80, 90, 100	P_REFSENS + 6 dB	Wide Area IAB-DU: -43 Medium Range IAB-DU: -38 Local Area IAB-DU: -35	±30	20 MHz DFT-s-OFDM NR signal, 15 kHz SCS, 100 RBs
NOTE: P_REFSENS depends on the RAT. For NR, P_REFSENS depends also on the IAB-DU channel bandwidth as specified in TS 38.174 [2], table 7.2.2-1, 7.2.2-2 and 7.2.2-3.

Table 7.4.2.5.2-2: IAB-DU narrowband blocking requirement

IAB-DU channel bandwidth of the lowest/highest carrier received (MHz)

Wanted signal mean power (dBm)

Interfering signal mean power (dBm)

10, 15, 20, 25, 30, 40, 50, 60, 70, 80, 90, 100

(Note 1)

P_REFSENS + 6 dB

Wide Area IAB-DU: -49

Medium Range IAB-DU: -44

Local Area IAB-DU: -41

NOTE 1: The SCS for the lowest/highest carrier received is the lowest SCS supported by the IAB-DU for that IAB-DU channel bandwidth

NOTE 2: P_REFSENS depends on the IAB-DU channel bandwidth as specified in TS 38.174 [2], table 7.2.2-1, 7.2.2-2 and 7.2.2-3.

NOTE 3: 7.5 kHz shift is not applied to the wanted signal.

Table 7.4.2.5.1-3: IAB-DU narrowband blocking interferer frequency offsets

IAB-DU channel bandwidth of the lowest/highest carrier received (MHz)	Interfering RB centre frequency offset to the lower/upper IAB-DU RF Bandwidth edge or sub-block edge inside a sub-block gap (kHz) (Note 2)	Type of interfering signal
10	±(355+m*180), m=0, 1, 2, 3, 4, 9, 14, 19, 24	5 MHz DFT-s-OFDM NR signal, 15 kHz SCS, 1 RB
15	±(360+m*180), m=0, 1, 2, 3, 4, 9, 14, 19, 24
20	±(350+m*180), m=0, 1, 2, 3, 4, 9, 14, 19, 24
25	±(565+m*180), m=0, 1, 2, 3, 4, 29, 54, 79, 99	20 MHz DFT-s-OFDM NR signal, 15 kHz SCS, 1 RB
30	±(570+m*180), m=0, 1, 2, 3, 4, 29, 54, 79, 99
40	±(565+m*180), m=0, 1, 2, 3, 4, 29, 54, 79, 99
50	±(560+m*180), m=0, 1, 2, 3, 4, 29, 54, 79, 99
60	±(570+m*180), m=0, 1, 2, 3, 4, 29, 54, 79, 99
70	±(565+m*180), m=0, 1, 2, 3, 4, 29, 54, 79, 99
80	±(560+m*180), m=0, 1, 2, 3, 4, 29, 54, 79, 99
90	±(570+m*180), m=0, 1, 2, 3, 4, 29, 54, 79, 99
100	±(565+m*180), m=0, 1, 2, 3, 4, 29, 54, 79, 99
NOTE 1: Interfering signal consisting of one resource block positioned at the stated offset, the channel bandwidth of the interfering signal is located adjacently to the lower/upper IAB-DU RF Bandwidth edge or sub-block edge inside a sub-block gap. NOTE 2: The centre of the interfering RB refers to the frequency location between the two central subcarriers.

7.4.2.5.2 Test requirements for IAB-MT

The throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel, with a wanted and an interfering signal coupled to IAB type 1‑H TAB connector using the parameters in tables 7.4.2.5.2-1, 7.4.2.5.2-2 and 7.4.2.5.2-3 for general blocking and narrowband blocking requirements. The reference measurement channel for the wanted signal is identified in clause 7.2.2 for each IAB-MT channel bandwidth and further specified in annex A.1. The characteristics of the interfering signal is further specified in annex E.

The in-band blocking requirements apply outside the IAB-MT RF Bandwidth or Radio Bandwidth. The interfering signal offset is defined relative to the IAB-MT RF Bandwidth edges or Radio Bandwidth edges.

The in-band blocking requirement shall apply from F_DL,low – Δf_OOB to F_DL,high + Δf_OOB. The Δf_OOB for wide area IAB-MT is defined in table 7.4.2.5.2-0.

Minimum conducted requirement is defined at the TAB connector for IAB-MT.

Table 7.4.2.5.2-0: Δf_OOB offset for NR operating bands

IAB-MT type	Operating band characteristics	Δf_OOB (MHz)
IAB type 1-H	F_DL,high – F_DL,low < 100 MHz	20
	100 MHz ≤ F_DL,high – F_DL,low ≤ 900 MHz	60

For an IAB-MT operating in non-contiguous spectrum within any operating band, the in-band blocking requirements apply in addition inside any sub-block gap, in case the sub-block gap size is at least as wide as twice the interfering signal minimum offset in Table 7.4.2.5.2-1. The interfering signal offset is defined relative to the sub-block edges inside the sub-block gap.

For a multi-band connector, the blocking requirements apply in the in-band blocking frequency ranges for each supported operating band. The requirement shall apply in addition inside any Inter RF Bandwidth gap, in case the Inter RF Bandwidth gap size is at least as wide as twice the interfering signal minimum offset in Table 7.4.2.5.2-1.

For an IAB-MT operating in non-contiguous spectrum within any operating band, the narrowband blocking requirement shall apply in addition inside any sub-block gap, in case the sub-block gap size is at least as wide as the channel bandwidth of the NR interfering signal in Table 7.4.2.5.2-3. The interfering signal offset is defined relative to the sub-block edges inside the sub-block gap.

For a multi-band connector, the narrowband blocking requirement shall apply in addition inside any Inter RF Bandwidth gap, in case the Inter RF Bandwidth gap size is at least as wide as the NR interfering signal in Table 7.4.2.5.2-3. The interfering signal offset is defined relative to the IAB-MT RF Bandwidth edges inside the Inter RF Bandwidth gap.

Table 7.4.2.5.2-1: IAB-MT general blocking requirement

IAB-MT channel bandwidth of the lowest/highest carrier received (MHz)	Wanted signal mean power (dBm)	Interfering signal mean power (dBm)	*Interfering signal centre frequency minimum offset from the lower/upper IAB-MT RF Bandwidth edge* or sub-block edge inside a sub-block gap (MHz)**	Type of interfering signal
10, 15, 20	P_REFSENS + 6 dB	Wide Area IAB-MT: -43 Local Area IAB-MT: -35	±7.5	5 MHz CP-OFDM NR signal 15 kHz SCS, 25 RBs
25, 30, 40, 50, 60, 70, 80, 90, 100	P_REFSENS + 6 dB	Wide Area IAB-MT: -43 Local Area IAB-MT: -35	±30	20 MHz CP-OFDM NR signal 15 kHz SCS, 100 RBs
NOTE: P_REFSENS depends on the RAT. For NR, P_REFSENS depends also on the IAB-MT channel bandwidth as specified in tables 7.2.2-1, 7.2.2-2.

Table 7.4.2.5.2-2: IAB-MT narrowband blocking requirement

IAB-MT channel bandwidth of the lowest/highest carrier received (MHz)

Wanted signal mean power (dBm)

Interfering signal mean power (dBm)

10, 15, 20, 25, 30, 40, 50, 60, 70, 80,90, 100 (Note 1)

P_REFSENS + 6 dB

Wide Area IAB-MT: -49

Local Area IAB-MT: -41

NOTE 1: The SCS for the lowest/highest carrier received is the lowest SCS supported by the IAB-MT for that IAB-MT channel bandwidth

NOTE 2: P_REFSENS depends on the IAB-MT channel bandwidth as specified in tables 7.2.2-1 and 7.2.2-2.

NOTE 3: 7.5 kHz shift is not applied to the wanted signal.

Table 7.4.2.5.2-3: IAB-MT narrowband blocking interferer frequency offsets

IAB-MT channel bandwidth of the lowest/highest carrier received (MHz)	*Interfering RB centre frequency offset to the lower/upper IAB-MT RF Bandwidth edge or sub-block* edge inside a sub-block gap (kHz) (Note 2)**	Type of interfering signal
10	±(355+m*180), m=0, 1, 2, 3, 4, 9, 14, 19, 24	5 MHz CP-OFDM NR signal, 15 kHz SCS, 1 RB
15	±(360+m*180), m=0, 1, 2, 3, 4, 9, 14, 19, 24
20	±(350+m*180), m=0, 1, 2, 3, 4, 9, 14, 19, 24
25	±(565+m*180), m=0, 1, 2, 3, 4, 29, 54, 79, 99	20 MHz CP-OFDM NR signal, 15 kHz SCS, 1 RB
30	±(570+m*180), m=0, 1, 2, 3, 4, 29, 54, 79, 99
40	±(565+m*180), m=0, 1, 2, 3, 4, 29, 54, 79, 99
50	±(560+m*180), m=0, 1, 2, 3, 4, 29, 54, 79, 99
60	±(570+m*180), m=0, 1, 2, 3, 4, 29, 54, 79, 99
70	±(565+m*180), m=0, 1, 2, 3, 4, 29, 54, 79, 99
80	±(560+m*180), m=0, 1, 2, 3, 4, 29, 54, 79, 99
90	±(570+m*180), m=0, 1, 2, 3, 4, 29, 54, 79, 99
100	±(565+m*180), m=0, 1, 2, 3, 4, 29, 54, 79, 99
NOTE 1: Interfering signal consisting of one resource block positioned at the stated offset, the channel bandwidth of the interfering signal is located adjacently to the lower/upper IAB-MT RF Bandwidth edge or sub-block edge inside a sub-block gap. NOTE 2: The centre of the interfering RB refers to the frequency location between the two central subcarriers.

7.5 Out-of-band blocking

7.5.1 Definition and applicability

The out-of-band blocking characteristics is a measure of the receiver ability to receive a wanted signal at its assigned channel at the TAB connector for IAB type 1-H in the presence of an unwanted interferer out of the operating band, which is a CW signal for out-of-band blocking.

7.5.2 Minimum requirement

The minimum requirement for IAB type 1-H:

For IAB-DU are defined in TS 38.174 [2], clause 7.5.3.

For IAB-MT are defined in TS 38.174 [2], clause 7.5.5.

Co-location minimum requirements for IAB type 1-H:

For IAB-DU are defined in TS 38.174 [2], clause 7.5.4.

For IAB-MT are defined in TS 38.174 [2], clause 7.5.6.

7.5.3 Test purpose

To verify the ability of the receiver to receive a wanted signal at its assigned channel at the TAB connector for IAB type 1-H in the presence of an unwanted interferer out of the operating band, which is a CW signal for out-of-band blocking.

7.5.4 Method of test

7.5.4.1 Initial conditions

Test environment: Normal; see annex B.2.

RF channels to be tested for single carrier (SC):

– M; see clause 4.9.1

IAB RF Bandwidth positions to be tested for multi-carrier (MC):

– M_RFBW for single-band connector(s), see clause 4.9.1,

– B_RFBW_T’_RFBW and B’_RFBW_T_RFBWfor multi-band connector(s), see clause 4.9.1.

In addition, for a multi-band connector:

– For B_RFBW_T’_RFBW, out-of-band blocking testing above the highest operating band may be omitted.

– For B’_RFBW_T_RFBW, out-of-band blocking testing below the lowest operating band may be omitted.

7.5.4.2 Procedure

The minimum requirement is applied to all connectors under test.

For IAB type 1-H the procedure is repeated until all TAB connectors necessary to demonstrate conformance have been tested; see clause 7.1.

1) Connect the connector under test to measurement equipment as shown in annex D.2.3 for IAB type 1-H.

2) For IAB-DU, set the signal generator for the wanted signal as defined in clause 7.5.5 to transmit as specified in table 7.5.5.1-1 and 7.5.5.2-1.

For IAB-MT, set the signal generator for the wanted signal as defined in clause 7.5.5 to transmit as specified in table 7.5.5.3-2 and 7.5.5.4-1.

For simultaneous operation tests, set the signal generator for the wanted signal of IAB-DU to transmit as specified in table 7.5.5.1-1 and 7.5.5.2-1 and for the wanted signal of IAB-MT to transmit in table 7.5.5.3-2 and 7.5.5.4-1.3) For IAB-DU, set the Signal generator for the interfering signal to transmit at the frequency offset and as specified in table 7.5.5.1-1 and 7.5.5.2-1. The CW interfering signal shall be swept with a step size of 1 MHz over than range 1 MHz to (F_{UL_low}– Δf_OOB) MHz and (F_{UL_high}+ Δf_OOB) MHz to 12750 MHz.

For IAB-MT, set the Signal generator for the interfering signal to transmit at the frequency offset and as specified in table 7.5.5.3-2 and 7.5.5.4-1. The CW interfering signal shall be swept with a step size of 1 MHz over than range 1 MHz to (F_{UL_low}– Δf_OOB) MHz and (F_{UL_high}+ Δf_OOB) MHz to 12750 MHz.

For simultaneous operation tests, set the signal generator for the interfering signal to transmit at the frequency offset and as specified in table 7.5.5.3-2 and 7.5.5.4-1. The CW interfering signal shall be swept with a step size of 1 MHz over than range 1 MHz to (F_{UL_low}– Δf_OOB) MHz and (F_{UL_high}+ Δf_OOB) MHz to 12750 MHz.

4) Measure the throughput according to annex A.1.

In addition, for a multi-band connector, the following steps shall apply:

7.5.5 Test requirements

7.5.5.1 General requirements for IAB-DU

The throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel, with a wanted and an interfering signal coupled to IAB type 1-H TAB connector using the parameters in table 7.5.5.1-1. The reference measurement channel for the wanted signal is identified in clause 7.2.2 for each channel bandwidth and further specified in annex A.1.

For IAB type 1-H the out-of-band blocking requirement apply from 1 MHz to F_{UL_low} – Δf_OOB and from F_{UL_high} + Δf_OOB up to 12750 MHz. The Δf_OOB for IAB type 1-H is defined in table 7.4.2.5.1-0.

Minimum conducted requirement is defined at the TAB connector for IAB type 1-H.

For a IAB capable of multi-band operation, the requirement in the out-of-band blocking frequency ranges apply for each operating band, with the exception that the in-band blocking frequency ranges of all supported operating bands according to clause 7.4.2.5 shall be excluded from the out-of-band blocking requirement.

Table 7.5.5.1-1: Out-of-band blocking performance requirement

Wanted signal mean power (dBm)	Interfering signal mean power (dBm)	Type of interfering signal
P_REFSENS +6 dB (Note 1)	-15	CW carrier
NOTE 1: P_REFSENS depends on the RAT. For NR, P_REFSENS depends also on the IAB-DU channel bandwidth as specified in TS 38.174 [2], tables 7.2.2-1, 7.2.2-2 and 7.2.2-3.

7.5.5.2 Co-location requirements for IAB-DU

This additional blocking requirement may be applied for the protection of NR IAB receivers when GSM, CDMA, UTRA, E-UTRA BS or NR IAB operating in a different frequency band are co-located with a NR IAB. The requirement is applicable to all channel bandwidths supported by the NR IAB.

The requirements in this clause assume a 30 dB coupling loss between interfering transmitter and NR IAB receiver and are based on co-location with base stations or IAB of the same class.

The throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel, with a wanted and an interfering signal coupled to IAB antenna input using the parameters in table 7.5.5.2-1 for all the IAB classes. The reference measurement channel for the wanted signal is identified in tables 7.2.5-1, 7.2.5-2 and 7.2.5-3 for each channel bandwidth and further specified in annex A.1.

For IAB type 1-H blocking requirement for co-location with IAB in other bands is applied for all operating bands for which co-location protection is provided.

Minimum conducted requirement is defined at the TAB connector for IAB type 1-H.

Table 7.5.5.2-1: Blocking performance requirement for NR IAB when co-located with BS/IAB in other frequency bands.

Frequency range of interfering signal	Wanted signal mean power for WA IAB-DU (dBm)	Interfering signal mean power for WA IAB-DU (dBm)	Interfering signal mean power for MR IAB-DU (dBm)	Interfering signal mean power for LA IAB-DU (dBm)	Type of interfering signal
Frequency range of co-located downlink operating band	P_REFSENS +6dB (Note 1)	+16	+8	x (Note 2)	CW carrier
NOTE 1: P_REFSENS depends on the IAB-DU channel bandwidth as specified in TS 38.174 [2], tables 7.2.2-1, 7.2.2-2 and 7.2.2-3. NOTE 2: x = -7 dBm for NR IAB co-located with Pico GSM850 or Pico CDMA850 x = -4 dBm for NR IAB co-located with Pico DCS1800 or Pico PCS1900 x = -6 dBm for NR IAB co-located with UTRA bands or E-UTRA bands or NR bands NOTE 3: The requirement does not apply when the interfering signal falls within any of the supported uplink operating band(s) or in Δf_OOB immediately outside any of the supported uplink operating band(s).

Frequency range of interfering signal

Wanted signal mean power for WA IAB-DU (dBm)

Interfering signal mean power for WA IAB-DU (dBm)

Interfering signal mean power for MR IAB-DU (dBm)

Interfering signal mean power for LA IAB-DU (dBm)

Type of interfering signal

Frequency range of co-located downlink operating band

P_REFSENS +6dB
(Note 1)

+16

x (Note 2)

CW carrier

NOTE 1: P_REFSENS depends on the IAB-DU channel bandwidth as specified in TS 38.174 [2], tables 7.2.2-1, 7.2.2-2 and 7.2.2-3.

NOTE 2: x = -7 dBm for NR IAB co-located with Pico GSM850 or Pico CDMA850
x = -4 dBm for NR IAB co-located with Pico DCS1800 or Pico PCS1900
x = -6 dBm for NR IAB co-located with UTRA bands or E-UTRA bands or NR bands

NOTE 3: The requirement does not apply when the interfering signal falls within any of the supported uplink operating band(s) or in Δf_OOB immediately outside any of the supported uplink operating band(s).

7.5.5.3 General requirements for IAB-MT

The throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel, with a wanted and an interfering signal coupled to IAB type 1-H TAB connector using the parameters in table 7.5.5.3-2. The reference measurement channel for the wanted signal is identified in subclause 7.2.1 and subclause 7.2.2 for each IAB-MT channel bandwidth and further specified in annex A.1.

The out-of-band blocking requirement apply from 1 MHz to F_DL,low – Δf_OOB and from F_DL,high + Δf_OOB up to 12750 MHz. The Δf_OOB for IAB-MT is defined in table 7.5.5.3-1.

Table 7.5.5.3-1: Δf_OOB offset for NR operating bands

IAB-MT type	Operating band characteristics	Δf_OOB (MHz)
IAB type 1-H	F_DL,high – F_DL,low < 100 MHz	20
	100 MHz ≤ F_DL,high – F_DL,low ≤ 900 MHz	60

Minimum conducted requirement is defined and at the TAB connector for IAB-MT type 1-H.

For a multi-band connector, the requirement in the out-of-band blocking frequency ranges apply for each operating band, with the exception that the in-band blocking frequency ranges of all supported operating bands according to clause 7.4.2.2 shall be excluded from the out-of-band blocking requirement.

Table 7.5.5.3-2: Out-of-band blocking performance requirement for NR

Wanted Signal mean power (dBm)	Interfering Signal mean power (dBm)	Type of Interfering Signal
P_REFSENS +6 dB (Note)	-15	CW carrier
NOTE 1: For NR, P_REFSENS depends also on the IAB-MT channel bandwidth as specified in subclause 7.2.1 and subclause 7.2.2.

7.5.5.4 Co-location requirements for IAB-MT

This additional blocking requirement may be applied for the protection of IAB-MT receivers when GSM, CDMA, UTRA, E-UTRA, NR BS or IAB-node operating in a different frequency band are co-located with an IAB-node. The requirement is applicable to all IAB-MT channel bandwidths supported by the IAB-node.

The requirements in this clause assume a 30 dB coupling loss between interfering transmitter and IAB-node receiver and are based on co-location with base stations of the same class.

The throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel, with a wanted and an interfering signal coupled to IAB type 1-H TAB connector input using the parameters in table 7.5.5.4-1 for all the IAB classes. The reference measurement channel for the wanted signal is identified in subclause 7.2.1 and subclause 7.2.2 for each IAB-MT channel bandwidth and further specified in annex A.1.

The blocking requirement for co-location with BS or IAB-node in other bands is applied for all operating bands for which co-location protection is provided.

Minimum conducted requirement is defined at the TAB connector for IAB type 1-H.

Table 7.5.5.4-1: Blocking performance requirement for the IAB node

Frequency range of interfering signal	Wanted signal mean power (dBm)	Interfering signal mean power for WA IAB node (dBm)	Interfering signal mean power for LA IAB node (dBm)	Type of interfering signal
Frequency range of co-located downlink operating band	P_REFSENS +6dB (Note 1)	+16	x (Note 2)	CW carrier
NOTE 1: P_REFSENS depends on the IAB-MT channel bandwidth as specified in subclause 7.2.1 and subclause 7.2.2. NOTE 2: x = -7 dBm for IAB-MT co-located with Pico GSM850 or Pico CDMA850 x = -4 dBm for IAB-MT co-located with Pico DCS1800 or Pico PCS1900 x = -6 dBm for IAB-MT co-located with UTRA bands or E-UTRA bands or NR bands NOTE 3: The requirement does not apply when the interfering signal falls within any of the supported downlink operating band(s) or in Δf_OOB immediately outside any of the supported downlink operating band(s).

Frequency range of interfering signal

Wanted signal mean power (dBm)

Interfering signal mean power for WA IAB node (dBm)

Interfering signal mean power for LA IAB node (dBm)

Type of interfering signal

Frequency range of co-located downlink operating band

P_REFSENS +6dB
(Note 1)

+16

x (Note 2)

CW carrier

NOTE 1: P_REFSENS depends on the IAB-MT channel bandwidth as specified in subclause 7.2.1 and subclause 7.2.2.

NOTE 2: x = -7 dBm for IAB-MT co-located with Pico GSM850 or Pico CDMA850
x = -4 dBm for IAB-MT co-located with Pico DCS1800 or Pico PCS1900
x = -6 dBm for IAB-MT co-located with UTRA bands or E-UTRA bands or NR bands

NOTE 3: The requirement does not apply when the interfering signal falls within any of the supported downlink operating band(s) or in Δf_OOB immediately outside any of the supported downlink operating band(s).

7.6 Receiver spurious emissions

7.6.1 Definition and applicability

The receiver spurious emissions power is the power of emissions generated or amplified in a receiver unit that appear at the TAB connector (for IAB type 1-H). The requirements apply to all IAB-DU and IAB-MT with separate RX and TX TAB connectors.

For TAB connectors supporting both RX and TX in TDD, the requirements apply during the transmitter OFF period.

For RX-only multi-band connectors, the spurious emissions requirements are subject to exclusion zones in each supported operating band. For multi-band connectors that both transmit and receive in operating band supporting TDD, RX spurious emissions requirements are applicable during the TX OFF period, and are subject to exclusion zones in each supported operating band.

For IAB type 1-H manufacturer shall declare TAB connector RX min cell groups. The declaration is done separately for IAB-DU and IAB-MT. Every TAB connector of IAB type 1-H supporting reception in an operating band shall map to one TAB connector RX min cell group, where mapping of TAB connectors to cells/beams is implementation dependent.

The number of active receiver units that are considered when calculating the conducted RX spurious emission limits (N_RXU,counted) for IAB type 1-H is calculated as follows:

N_RXU,counted = min(N_RXU,active, 8 × N_cells)

N_{RXU,countedpercell} is used for scaling of basic limits and is derived as N_{RXU,countedpercell}= N_RXU,counted/ N_cells, where N_cells is defined in clause 6.1.

NOTE: N_RXU,active is the number of actually active receiver units and is independent to the declaration of N_cells.

7.6.2 Minimum requirement

The minimum requirement for IAB type 1-H:

For IAB-DU are in TS 38.174 [2], clause 7.6.2.

For IAB-MT are in TS 38.174 [2], clause 7.6.3.

7.6.3 Test purpose

The test purpose is to verify the ability of the IAB to limit the interference caused by receiver spurious emissions to other systems.

7.6.4 Method of test

7.6.4.1 Initial conditions

Test environment: Normal; see annex B.2.

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

IAB RF Bandwidth positions to be tested for multi-carrier:

– M_RFBW in single-band operation, see clause 4.9.1,

– B_RFBW_T’_RFBW and B’_RFBW_T_RFBW in multi-band operation, see clause 4.9.1.

7.6.4.2 Procedure

The minimum requirement is applied to all connectors under test,

For IAB type 1-H where there may be multiple TAB connectors they may be tested one at a time or multiple TAB connectors may be tested in parallel as shown in annex D.2.4. Whichever method is used the procedure is repeated until all TAB connectors necessary to demonstrate conformance have been tested.

1) Connect the connector under test to measurement equipment as shown in annex D.2.4 for IAB type 1-H.

2) For TDD connectors capable of transmit and receive ensure the transmitter is OFF. For IAB type 1-H supporting simultaneous reception of IAB-DU and IAB-MT (D.IAB-2), both IAB-DU and IAB-MT shall be configured to simultaneously receive only during the test.

3) For IAB-DU, set the measurement equipment parameters as specified in table 7.6.5.1-1.

For IAB-MT, set the measurement equipment parameters as specified in table 7.6.5.3-1.

4) For IAB-DU, measure the spurious emissions over each frequency range described in table 7.6.5.1-1.

For IAB-MT, measure the spurious emissions over each frequency range described in table 7.6.5.3-1.

In addition, for a multi-band connector, the following steps shall apply:

7.6.5 Test requirements

7.6.5.1 Basic limits for IAB-DU

The receiver spurious emissions limits are provided in table 7.6.5.1-1.

Table 7.6.5.1-1: General receiver spurious emissions limits

Spurious frequency range	Basic limit	Measurement bandwidth	Notes
30 MHz – 1 GHz	-57 dBm	100 kHz	Note 1
1 GHz – 12.75 GHz	-47 dBm	1 MHz	Note 1, Note 2
12.75 GHz – 5^th harmonic of the upper frequency edge of the UL operating band in GHz	-47 dBm	1 MHz	Note 1, Note 2, Note 3
NOTE 1: Measurement bandwidths as in ITU-R SM.329 [5], s4.1. NOTE 2: Upper frequency as in ITU-R SM.329 [5], s2.5 table 1. NOTE 3: This spurious frequency range applies only for operating bands for which the 5^th harmonic of the upper frequency edge of the UL operating band is reaching beyond 12.75 GHz. NOTE 4: The frequency range from Δf_OBUE below the lowest frequency of the IAB transmitter operating band to Δf_OBUE above the highest frequency of the IAB transmitter operating band may be excluded from the requirement. Δf_OBUE is defined in clause 6.6.1. For multi-band connectors, the exclusion applies for all supported operating bands. NOTE 5: Void

7.6.5.2 Test requirement for IAB-DU

The RX spurious emissions requirements for IAB type 1-H are that for each applicable basic limit specified in table 7.6.5.1-1 for each TAB connector RX min cell group, the power sum of emissions at respective TAB connectors shall not exceed the IAB limits specified as the basic limits + X, where X = 10log₁₀(N_{RXU,countedpercell}), unless stated differently in regional regulation.

The RX spurious emission requirements are applied per the TAB connector RX min cell group for all the configurations supported by the IAB-DU.

NOTE: Conformance to the IAB-DU receiver spurious emissions requirement can be demonstrated by meeting at least one of the following criteria as determined by the manufacturer:

1) The sum of the spurious emissions power measured on each TAB connector in the TAB connector RX min cell group shall be less than or equal to the IAB-DU limit above for the respective frequency span.

2) The spurious emissions power at each TAB connector shall be less than or equal to the IAB-DU limit as defined above for the respective frequency span, scaled by -10log₁₀(n), where n is the number of TAB connectors in the TAB connector RX min cell group.

7.6.5.3 Basic limits for IAB-MT

The IAB-MT receiver spurious emissions basic limits are provided in table 7.6.5.3-1.

Table 7.6.5.3-1: General IAB-MT receiver spurious emissions limits

Spurious frequency range	*Basic limits*	*Measurement bandwidth*	Note
30 MHz – 1 GHz	-57 dBm	100 kHz	Note 1
1 GHz – 12.75 GHz	-47 dBm	1 MHz	Note 1, Note 2
12.75 GHz – 5^th harmonic of the upper frequency edge of the DL operating band in GHz	-47 dBm	1 MHz	Note 1, Note 2, Note 3
NOTE 1: Measurement bandwidths as in ITU-R SM.329 [5], s4.1. NOTE 2: Upper frequency as in ITU-R SM.329 [5], s2.5 table 1. NOTE 3: This spurious frequency range applies only for operating bands for which the 5^th harmonic of the upper frequency edge of the DL operating band is reaching beyond 12.75 GHz. NOTE 4: The frequency range from Δf_OBUE below the lowest frequency of the IAB-MT transmitter operating band to Δf_OBUE above the highest frequency of the IAB-MT transmitter operating band may be excluded from the requirement. Δf_OBUE is defined in clause [6.6.1]. For multi-band connectors, the exclusion applies for all supported operating bands.

7.6.5.4 Test requirement for IAB-MT

The RX spurious emissions requirements for IAB type 1-H are that for each applicable basic limit specified in table 7.6.5.3-1 for each TAB connector RX min cell group, the power sum of emissions at respective TAB connectors shall not exceed the IAB-MT limits specified as the basic limits + X, where X = 10log₁₀(N_{RXU,countedpercell}), unless stated differently in regional regulation.

The RX spurious emission requirements are applied per the TAB connector RX min cell group for all the configurations supported by the IAB-MT.

NOTE: Conformance to the IAB-MT receiver spurious emissions requirement can be demonstrated by meeting at least one of the following criteria as determined by the manufacturer:

1) The sum of the spurious emissions power measured on each TAB connector in the TAB connector RX min cell group shall be less than or equal to the IAB-MT limit above for the respective frequency span.

2) The spurious emissions power at each TAB connector shall be less than or equal to the IAB-MT limit as defined above for the respective frequency span, scaled by -10log₁₀(n), where n is the number of TAB connectors in the TAB connector RX min cell group.

7.7 Receiver intermodulation

7.7.1 Definition and applicability

Third and higher order mixing of the two interfering RF signals can produce an interfering signal in the band of the desired channel. Intermodulation response rejection is a measure of the capability of the receiver to receive a wanted signal on its assigned channel frequency at the TAB connector for IAB type 1-H in the presence of two interfering signals which have a specific frequency relationship to the wanted signal.

7.7.2 Minimum requirement

The minimum requirement for IAB type 1-H:

For IAB-DU are in TS 38.174 [2], clause 7.7.2.

For IAB-MT are in TS 38.174 [2], clause 7.7.3.

7.7.3 Test purpose

The test purpose is to verify the ability of the IAB node receiver to inhibit the generation of intermodulation products in its non-linear elements caused by the presence of two high-level interfering signals at frequencies with a specific relationship to the frequency of the wanted signal.

7.7.4 Method of test

7.7.4.1 Initial conditions

Test environment: Normal; see annex B.2.

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

IAB RF Bandwidth positions to be tested for multi-carrier (MC) and/or CA:

– M_RFBW for single-band connector(s), see clause 4.9.1,

– B_RFBW_T’_RFBW and B’_RFBW_T_RFBWfor multi-band connector(s), see clause 4.9.1.

7.7.4.2 Procedure

The minimum requirement is applied to all connectors under test.

For IAB type 1-H the procedure is repeated until all TAB connectors necessary to demonstrate conformance have been tested; see clause 7.1. If IAB simultaneous reception is declared to be supported (see D.IAB-2 in table 4.6-1), connector(s) for IAB-MT and IAB-DU may be tested one at a time or may be tested in parallel as shown in annex D.2.6.

1) Connect the connector under test to measurement equipment as shown in annex D.2.6 for IAB type 1-H. All connectors not under test shall be terminated.

2) Set the signal generator for the wanted signal to transmit as specified in table 7.7.5.1-1 and 7.7.5.1-3 for IAB-DU and table 7.7.5.2-1 and 7.7.5.2-3 for IAB-MT.

3) Set the signal generator for the interfering signal to transmit at the frequency offset and as specified in table 7.7.5.1-2 and 7.7.5.1-4 for IAB-DU and table 7.7.5.2-2 and 7.7.5.2-4 for IAB-MT.

4) Measure the throughput according to annex A.1.

In addition, for a multi-band connector, the following steps shall apply:

7.7.5 Test requirements

7.7.5.1 IAB-DU

The throughputshall be ≥ 95% of the maximum throughput of the reference measurement channel, with a wanted signal at the assigned channel frequency and two interfering signals coupled to the IAB type 1-H TAB connector, with the conditions specified in tables 7.7.5.1-1 and 7.7.5.1-2 for intermodulation performance and in tables 7.7.5.1-3, and 7.7.5.1-4 for narrowband intermodulation performance. The reference measurement channel for the wanted signal is identified in tables 7.2.5.1-1 to 7.2.5.1-3 for each channel bandwidth and further specified in annex A.1. The characteristics of the interfering signal is further specified in annex E.

The subcarrier spacing for the modulated interfering signal shall in general be the same as the subcarrier spacing for the wanted signal, except for the case of wanted signal subcarrier spacing 60 kHz and IAB-DU channel bandwidth <= 20MHz, for which the subcarrier spacing of the interfering signal should be 30 kHz.

The receiver intermodulation requirement is applicable outside the IAB-DU RF Bandwidth or Radio Bandwidth edges. The interfering signal offset is defined relative to the IAB-DU RF Bandwidth edges or Radio Bandwidth edges.

For an IAB-DU operating in non-contiguous spectrum within any operating band, the narrowband intermodulation requirement applies in addition inside any sub-block gap in case the sub-block gap is at least as wide as the channel bandwidth of the NR interfering signal in table 7.7.5.1-2 or 7.7.5.1-4. The interfering signal offset is defined relative to the sub-block edges inside the sub-block gap.

For a multi-band connectors, the intermodulation requirement applies in addition inside any Inter RF Bandwidth gap, in case the gap size is at least twice as wide as the NR interfering signal centre frequency offset from the IAB-DU RF Bandwidth edge.

For a multi-band connectors, the narrowband intermodulation requirement applies in addition inside any Inter RF Bandwidth gap in case the gap size is at least as wide as the NR interfering signal in tables 7.7.5.1-2 and 7.7.5.1-4. The interfering signal offset is defined relative to the IAB-DU RF Bandwidth edges inside the Inter RF Bandwidth gap.

Table 7.7.5.1-1: General intermodulation requirement

IAB-DU type	Wanted Signal mean power (dBm)	Mean power of interfering signals (dBm)	Type of interfering signals
Wide Area	P_REFSENS + 6 dB	-52
Medium Range	P_REFSENS + 6 dB	-47	See table 7.7.5.1-2
Local Area	P_REFSENS + 6 dB	-44
NOTE: P_REFSENS depends on the RAT and the IAB class. For NR, P_REFSENS depends also on the IAB-DU channel bandwidth as specified in TS 38.174 [2], clause 7.2.1.2.

Table 7.7.5.1-2: Interfering signals for intermodulation requirement

IAB-DU channel bandwidth of the lowest/highest carrier received (MHz)	Interfering signal centre frequency offset from the lower/upper IAB-DU RF Bandwidth edge (MHz)	Type of interfering signal (Note 3)
10	±7.465	CW
	±17.5	5 MHz DFT-s-OFDM NR signal, (Note 1)
15	±7.43	CW
	±17.5	5 MHz DFT-s-OFDM NR signal, (Note 1)
20	±7.395	CW
	±17.5	5 MHz DFT-s-OFDM NR signal, (Note 1)
25	±7.465	CW
	±25	20MHz DFT-s-OFDM NR signal, (Note 2)
30	±7.43	CW
	±25	20 MHz DFT-s-OFDM NR signal, (Note 2)
40	±7.45	CW
	±25	20 MHz DFT-s-OFDM NR signal, (Note 2)
50	±7.35	CW
	±25	20 MHz DFT-s-OFDM NR signal, (Note 2)
60	±7.49	CW
	±25	20 MHz DFT-s-OFDM NR signal, (Note 2)
70	±7.42	CW
	±25	20 MHz DFT-s-OFDM NR signal, (Note 2)
80	±7.44	CW
	±25	20 MHz DFT-s-OFDM NR signal, (Note 2)
90	±7.46	CW
	±25	20 MHz DFT-s-OFDM NR signal, (Note 2)
100	±7.48	CW
	±25	20 MHz DFT-s-OFDM NR signal, (Note 2)
NOTE 1: For the 15 kHz subcarrier spacing, the number of RB is 25. For the 30 kHz subcarrier spacing, the number of RB is 10. NOTE 2: For the 15 kHz subcarrier spacing, the number of RB is 100. For the 30 kHz subcarrier spacing, the number of RB is 50. For the 60 kHz subcarrier spacing, the number of RB is 24. NOTE 3: The RBs shall be placed adjacent to the transmission bandwidth configuration edge which is closer to the IAB-DU RF Bandwidth edge.

Table 7.7.5.1-3: Narrowband intermodulation performance requirement in FR1

IAB-DU type	Wanted signal mean power (dBm) (Note 1)	Mean power of interfering signals (dBm)	Type of interfering signal
Wide Area	P_REFSENS + 6 dB	-52
Medium Range	P_REFSENS + 6 dB	-47	See table 7.7.5.1-4
Local Area	P_REFSENS + 6 dB	-44
NOTE: P_REFSENS depends on the RAT. For NR, P_REFSENS depends also on the IAB-DU channel bandwidth as specified in TS 38.174 [2], clause 7.2.1.2.

Table 7.7.5.1-4: Interfering signals for narrowband intermodulation requirement in FR1

IAB-DU channel bandwidth of the lowest/highest carrier received (MHz)	Interfering RB centre frequency offset from the lower/upper IAB-DU RF Bandwidth edge or sub-block edge inside a sub-block gap (kHz) (Note 3)	Type of interfering signals
10	±370	CW
	±1960	5 MHz DFT-s-OFDM NR signal, 1 RB (Note 1)
15 (Note 2)	±380	CW
	±1960	5 MHz DFT-s-OFDM NR signal, 1 RB (Note 1)
20 (Note 2)	±390	CW
	±2320	5 MHz DFT-s-OFDM NR signal, 1 RB (Note 1)
25 (Note 2)	±325	CW
	±2350	20 MHz DFT-s-OFDM NR signal, 1 RB (Note 1)
30 (Note 2)	±335	CW
	±2350	20 MHz DFT-s-OFDM NR signal, 1 RB (Note 1)
40 (Note 2)	±355	CW
	±2710	20 MHz DFT-s-OFDM NR signal, 1 RB (Note 1)
50 (Note 2)	±375	CW
	±2710	20 MHz DFT-s-OFDM NR signal, 1 RB (Note 1)
60 (Note 2)	±395	CW
	±2710	20 MHz DFT-s-OFDM NR signal, 1 RB (Note 1)
70 (Note 2)	±415	CW
	±2710	20 MHz DFT-s-OFDM NR signal, 1 RB (Note 1)
80 (Note 2)	±435	CW
	±2710	20 MHz DFT-s-OFDM NR signal, 1 RB (Note 1)
90 (Note 2)	±365	CW
	±2530	20 MHz DFT-s-OFDM NR signal, 1 RB (Note 1)
100 (Note 2)	±385	CW
	±2530	20 MHz DFT-s-OFDM NR signal, 1 RB (Note 1)
NOTE 1: Interfering signal consisting of one resource block positioned at the stated offset, the IAB-DU channel bandwidth of the interfering signal is located adjacently to the lower/upper IAB-DU RF Bandwidth edge or sub-block edge inside a sub-block gap. NOTE 2: This requirement shall apply only for a G-FRC mapped to the frequency range at the channel edge adjacent to the interfering signals. NOTE 3: The centre of the interfering RB refers to the frequency location between the two central subcarriers.

7.7.5.2 IAB-MT

The throughputshall be ≥ 95% of the maximum throughput of the reference measurement channel, with a wanted signal at the assigned channel frequency and two interfering signals coupled to the IAB type 1-H TAB connector, with the conditions specified in tables 7.7.5.2-1 and 7.7.5.2-2 for intermodulation performance and in tables 7.7.5.2-3, and 7.7.5.2-4 for narrowband intermodulation performance. The reference measurement channel for the wanted signal is identified in tables 7.2.5.2-1 to 7.2.5.2-2 for each channel bandwidth and further specified in annex A.1. The characteristics of the interfering signal is further specified in annex E.

The subcarrier spacing for the modulated interfering signal shall in general be the same as the subcarrier spacing for the wanted signal, except for the case of wanted signal subcarrier spacing 60 kHz and IAB-MT channel bandwidth <=20MHz, for which the subcarrier spacing of the interfering signal should be 30 kHz.

The receiver intermodulation requirement is applicable outside the IAB-MT RF Bandwidth or Radio Bandwidth edges. The interfering signal offset is defined relative to the IAB-MT RF Bandwidth edges or Radio Bandwidth edges.

For an IAB-MT operating in non-contiguous spectrum within any operating band, the narrowband intermodulation requirement applies in addition inside any sub-block gap in case the sub-block gap is at least as wide as the channel bandwidth of the NR interfering signal in table 7.7.5.2-2 or 7.7.5.2-4. The interfering signal offset is defined relative to the sub-block edges inside the sub-block gap.

For a multi-band connectors, the narrowband intermodulation requirement applies in addition inside any Inter RF Bandwidth gap in case the gap size is at least as wide as the NR interfering signal in tables 7.7.5.2-2 and 7.7.5.2-4. The interfering signal offset is defined relative to the IAB-MT RF Bandwidth edges inside the Inter RF Bandwidth gap.

Table 7.7.5.2-1: General intermodulation requirement

IAB-MT type	Wanted Signal mean power (dBm)	Mean power of interfering signals (dBm)	Type of interfering signals
Wide Area	P_REFSENS + 6 dB	-52	See table 7.7.5.2-2
Local Area	P_REFSENS + 6 dB	-44
NOTE: P_REFSENS depends on the RAT and the IAB class. For NR, P_REFSENS depends also on the IAB-MT channel bandwidth as specified in TS 38.174 [2], clause 7.2.2.2.

Table 7.7.5.2-2: Interfering signals for intermodulation requirement

IAB-MT channel bandwidth of the lowest/highest carrier received (MHz)	Interfering signal centre frequency offset from the lower/upper IAB-MT RF Bandwidth edge (MHz)	Type of interfering signal (Note 3)
10	±7.465	CW
	±17.5	5 MHz CP-OFDM NR signal, (Note 1)
15	±7.43	CW
	±17.5	5 MHz CP-OFDM NR signal, (Note 1)
20	±7.395	CW
	±17.5	5 MHz CP-OFDM NR signal, (Note 1)
25	±7.465	CW
	±25	20MHz CP-OFDM NR signal, (Note 2)
30	±7.43	CW
	±25	20 MHz CP-OFDM NR signal, (Note 2)
40	±7.45	CW
	±25	20 MHz CP-OFDM NR signal, (Note 2)
50	±7.35	CW
	±25	20 MHz CP-OFDM NR signal, (Note 2)
60	±7.49	CW
	±25	20 MHz CP-OFDM NR signal, (Note 2)
70	±7.42	CW
	±25	20 MHz CP-OFDM NR signal, (Note 2)
80	±7.44	CW
	±25	20 MHz CP-OFDM NR signal, (Note 2)
90	±7.46	CW
	±25	20 MHz CP-OFDM NR signal, (Note 2)
100	±7.48	CW
	±25	20 MHz CP-OFDM NR signal, (Note 2)
NOTE 1: For the 15 kHz subcarrier spacing, the number of RB is 25. For the 30 kHz subcarrier spacing, the number of RB is 10. NOTE 2: For the 15 kHz subcarrier spacing, the number of RB is 100. For the 30 kHz subcarrier spacing, the number of RB is 50. For the 60 kHz subcarrier spacing, the number of RB is 24. NOTE 3: The RBs shall be placed adjacent to the transmission bandwidth configuration edge which is closer to the IAB-MT RF Bandwidth edge.

Table 7.7.5.2-3: Narrowband intermodulation performance requirement in FR1

IAB-MT type	Wanted signal mean power (dBm) (Note 1)	Mean power of interfering signals (dBm)	Type of interfering signal
Wide Area	P_REFSENS + 6 dB	-52	See table 7.7.5.2-4
Local Area	P_REFSENS + 6 dB	-44
NOTE: P_REFSENS depends on the RAT. For NR, P_REFSENS depends also on the IAB-MT channel bandwidth as specified in TS 38.174 [2], clause 7.2.2.2.

Table 7.7.5.2-4: Interfering signals for narrowband intermodulation requirement in FR1

IAB-MT channel bandwidth of the lowest/highest carrier received (MHz)	Interfering RB centre frequency offset from the lower/upper IAB-MT RF Bandwidth edge or sub-block edge inside a sub-block gap (kHz) (Note 3)	Type of interfering signals
10	±370	CW
	±1960	5 MHz CP-OFDM NR signal, 1 RB (Note 1)
15 (Note 2)	±380	CW
	±1960	5 MHz CP-OFDM NR signal, 1 RB (Note 1)
20 (Note 2)	±390	CW
	±2320	5 MHz CP-OFDM NR signal, 1 RB (Note 1)
25 (Note 2)	±325	CW
	±2350	20 MHz CP-OFDM NR signal, 1 RB (Note 1)
30 (Note 2)	±335	CW
	±2350	20 MHz CP-OFDM NR signal, 1 RB (Note 1)
40 (Note 2)	±355	CW
	±2710	20 MHz CP-OFDM NR signal, 1 RB (Note 1)
50 (Note 2)	±375	CW
	±2710	20 MHz CP-OFDM NR signal, 1 RB (Note 1)
60 (Note 2)	±395	CW
	±2710	20 MHz CP-OFDM NR signal, 1 RB (Note 1)
70 (Note 2)	±415	CW
	±2710	20 MHz CP-OFDM NR signal, 1 RB (Note 1)
80 (Note 2)	±435	CW
	±2710	20 MHz CP-OFDM NR signal, 1 RB (Note 1)
90 (Note 2)	±365	CW
	±2530	20 MHz CP-OFDM NR signal, 1 RB (Note 1)
100 (Note 2)	±385	CW
	±2530	20 MHz CP-OFDM NR signal, 1 RB (Note 1)
NOTE 1: Interfering signal consisting of one resource block positioned at the stated offset, the IAB-MT channel bandwidth of the interfering signal is located adjacently to the lower/upper IAB-MT RF Bandwidth edge or sub-block edge inside a sub-block gap. NOTE 2: This requirement shall apply only for a G-FRC mapped to the frequency range at the channel edge adjacent to the interfering signals. NOTE 3: The centre of the interfering RB refers to the frequency location between the two central subcarriers.

7.8 In-channel selectivity

7.8.1 Definition and applicability

In-channel selectivity (ICS) is a measure of the receiver ability to receive a wanted signal at its assigned resource block locations at the TAB connector for IAB-DU in the presence of an interfering signal received at a larger power spectral density. In this condition a throughput requirement shall be met for a specified reference measurement channel. The interfering signal shall be an NR signal which is time aligned with the wanted signal.

7.8.2 Minimum requirement

The minimum requirements for IAB type 1-H for IAB-DU are in TS 38.174 [2], clause 7.8.2.

7.8.3 Test purpose

The purpose of this test is to verify the IAB-DU receiver ability to suppress the IQ leakage.

7.8.4 Method of test

7.8.4.1 Initial conditions

Test environment: Normal; see annex B.2.

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

7.8.4.2 Procedure

The minimum requirement is applied to all connectors under test.

For IAB type 1-H the procedure is repeated until all TAB connectors necessary to demonstrate conformance have been tested; see clause 7.1.

1) Set the signal generator for the wanted signal to transmit as specified in sub-clause 7.8.5.

2) Set the signal generator for the interfering signal to transmit at the frequency offset and as specified in sub-clause 7.8.5.

3) Measure the throughput according to annex A.1.

In addition, for a multi-band connector, the following steps shall apply:

4) For multi-band connector and single band tests, repeat the steps above per involved band where single band test configurations and test models shall apply with no carrier activated in the other band.

7.8.5 Test requirements

7.8.5.1 IAB-DU

For IAB-DU, the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel as specified in annex A.1 with parameters specified in table 7.8.5.1-1 for Wide Area IAB-DU, in table 7.8.5.1-2 for Medium Range IAB-DU and in table 7.8.5.1-3 for Local Area IAB-DU. The characteristics of the interfering signal is further specified in annex E.

Table 7.8.5.1-1: Wide Area IAB-DU in-channel selectivity

IAB-DU channel bandwidth	Subcarrier spacing	Reference measurement	Wanted signal mean power (dBm)			Interfering signal mean	Type of interfering signal
(MHz)	(kHz)	channel	f ≤ 3.0 GHz	3.0 GHz < f ≤ 4.2 GHz	4.2 GHz < f ≤ 6.0 GHz	power (dBm)
10, 15, 20, 25, 30	15	G-FR1-A1-1	-97.3	-96.9	-96.6	-77.4	DFT-s-OFDM NR signal, 15 kHz SCS, 25 RBs
40, 50	15	G-FR1-A1-4	-90.9	-90.5	-90.2	-71.4	DFT-s-OFDM NR signal, 15 kHz SCS, 100 RBs
10, 15, 20, 25, 30	30	G-FR1-A1-2	-97.4	-97	-96.7	-78.4	DFT-s-OFDM NR signal, 30 kHz SCS, 10 RBs
40, 50, 60, 70, 80, 90, 100	30	G-FR1-A1-5	-91.2	-90.8	-90.5	-71.4	DFT-s-OFDM NR signal, 30 kHz SCS, 50 RBs
10, 15, 20, 25, 30	60	G-FR1-A1-9	-96.8	-96.4	-96.1	-78.4	DFT-s-OFDM NR signal, 60 kHz SCS, 5 RBs
40, 50, 60, 70, 80, 90, 100	60	G-FR1-A1-6	-91.3	-90.9	-90.6	-71.6	DFT-s-OFDM NR signal, 60 kHz SCS, 24 RBs
NOTE: Wanted and interfering signal are placed adjacently around F_c, where the F_c is defined for IAB-DU channel bandwidth of the wanted signal according to the clause 5.4.2.2 in TS 38.174 [2]. The aggregated wanted and interferer signal shall be centred in the IAB-DU channel bandwidth of the wanted signal.

Table 7.8.5.1-2: Medium Range IAB-DU in-channel selectivity

IAB-DU channel bandwidth	Subcarrier spacing	Reference measurement	Wanted signal mean power (dBm)			Interfering signal mean	Type of interfering signal
(MHz)	(kHz)	channel	f ≤ 3.0 GHz	3.0 GHz < f ≤ 4.2 GHz	4.2 GHz < f ≤ 6.0 GHz	power (dBm)
10, 15, 20, 25, 30	15	G-FR1-A1-1	-92.3	-91.9	-91.6	-72.4	DFT-s-OFDM NR signal, 15 kHz SCS, 25 RBs
40, 50	15	G-FR1-A1-4	-85.9	-85.5	-85.2	-66.4	DFT-s-OFDM NR signal, 15 kHz SCS, 100 RBs
10, 15, 20, 25, 30	30	G-FR1-A1-2	-92.4	-92	-91.7	-73.4	DFT-s-OFDM NR signal, 30 kHz SCS, 10 RBs
40, 50, 60, 70, 80, 90, 100	30	G-FR1-A1-5	-86.2	-85.8	-85.5	-66.4	DFT-s-OFDM NR signal, 30 kHz SCS, 50 RBs
10, 15, 20, 25, 30	60	G-FR1-A1-9	-91.8	-91.4	-91.1	-73.4	DFT-s-OFDM NR signal, 60 kHz SCS, 5 RBs
40, 50, 60, 70, 80, 90, 100	60	G-FR1-A1-6	-86.3	-85.9	-85.6	-66.6	DFT-s-OFDM NR signal, 60 kHz SCS, 24 RBs
NOTE: Wanted and interfering signal are placed adjacently around F_c, where the F_c is defined for IAB-DU channel bandwidth of the wanted signal according to the clause 5.4.2.2 in TS 38.174 [2]. The aggregated wanted and interferer signal shall be centred in the IAB-DU channel bandwidth of the wanted signal.

Table 7.8.5.1-3: Local area IAB-DU in-channel selectivity

IAB-DU channel bandwidth	Subcarrier spacing	Reference measurement	Wanted signal mean power (dBm)			Interfering signal mean	Type of interfering signal
(MHz)	(kHz)	channel	f ≤ 3.0 GHz	3.0 GHz < f ≤ 4.2 GHz	4.2 GHz < f ≤ 6.0 GHz	power (dBm)
10, 15, 20, 25, 30	15	G-FR1-A1-1	-89.3	-88.9	-88.6	-69.4	DFT-s-OFDM NR signal, 15 kHz SCS, 25 RB
40, 50	15	G-FR1-A1-4	-82.9	-82.5	-82.2	-63.4	DFT-s-OFDM NR signal, 15 kHz SCS, 100 RBs
10, 15, 20, 25, 30	30	G-FR1-A1-2	-89.4	-89	-88.7	-70.4	DFT-s-OFDM NR signal, 30 kHz SCS, 10 RBs
40, 50, 60, 70, 80, 90, 100	30	G-FR1-A1-5	-83.2	-82.8	-82.5	-63.4	DFT-s-OFDM NR signal, 30 kHz SCS, 50 RBs
10, 15, 20, 25, 30	60	G-FR1-A1-9	-88.8	-88.4	-88.1	-70.4	DFT-s-OFDM NR signal, 60 kHz SCS, 5 RBs
40, 50, 60, 70, 80, 90, 100	60	G-FR1-A1-6	-83.3	-82.9	-82.6	-63.6	DFT-s-OFDM NR signal, 60 kHz SCS, 24 RBs
NOTE: Wanted and interfering signal are placed adjacently around F_c, where the F_c is defined for IAB-DU channel bandwidth of the wanted signal according to the clause 5.4.2.2 in TS 38.174 [2]. The aggregated wanted and interferer signal shall be centred in the IAB-DU channel bandwidth of the wanted signal.