6.7 OTA unwanted emissions

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

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

6.7.1 General

Unwanted emissions consist of so-called out-of-band emissions and spurious emissions according to ITU definitions ITU-R SM.329 [10]. In ITU terminology, out of band emissions are unwanted emissions immediately outside the channel bandwidth resulting from the modulation process and non-linearity in the transmitter but excluding spurious emissions. Spurious emissions are emissions which are caused by unwanted transmitter effects such as harmonics emission, parasitic emission, intermodulation products and frequency conversion products, but exclude out of band emissions.

The OTA out-of-band emissions requirement for the IAB-MT type 1-O. IAB-DU type 1-O, IAB-DU type 1-O and IAB-DU type 2-O transmitter is specified both in terms of Adjacent Channel Leakage power Ratio (ACLR) and operating band unwanted emissions (OBUE). OTA Unwanted emissions outside of this frequency range are limited by an OTA spurious emissions requirement.

The maximum offset of the operating band unwanted emissions mask from the operating band edge is Δf_OBUE. The value of Δf_OBUE is defined in table 6.7.1-1 IAB-DU type 1-O and type 2-O and in table 6.7.1-2 IAB-MT type 1-O and type 2-O for NR operating bands.

Table 6.7.1-1: Maximum offset Δf_OBUE outside the downlink operating band for IAB-DU

IAB-DU type	Operating band characteristics	Δf_OBUE (MHz)
IAB-DU type 1-O	F_DL,high – F_DL,low < 100 MHz	10
	100 MHz ≤ F_DL,high – F_DL,low ≤ 900 MHz	40
IAB-DU type 2-O	F_DL,high – F_DL,low ≤ 4000 MHz	1500

Table 6.7.1-2: Maximum offset Δf_OBUE outside the uplink operating band for IAB-MT

IAB-MT type	Operating band characteristics	Δf_OBUE (MHz)
IAB-MT type 1-O	F_UL,high – F_UL,low < 100 MHz	10
	100 MHz ≤ F_UL,high – F_UL,low ≤ 900 MHz	40
IAB-MT type 2-O	F_UL,high – F_UL,low ≤ 4000 MHz	1500

The unwanted emission requirements are applied per cell for all the configurations. Requirements for OTA unwanted emissions are captured using TRP, directional requirements or co-location requirements as described per requirement.

There is in addition a requirement for occupied bandwidth.

6.7.2 OTA occupied bandwidth

6.7.2.1 Definition and applicability

The OTA occupied bandwidth is the width of a frequency band such that, below the lower and above the upper frequency limits, the mean powers emitted are each equal to a specified percentage /2 of the total mean transmitted power. See also recommendation ITU-R SM.328 [13].

The value of /2 shall be taken as 0.5%.

The OTA occupied bandwidth requirement shall apply during the transmitter ON period for a single transmitted carrier. The minimum requirement below may be applied regionally. There may also be regional requirements to declare the OTA occupied bandwidth according to the definition in the present clause.

The OTA occupied bandwidth is defined as a directional requirement and shall be met in the manufacturer’s declared OTA coverage range at the RIB.

6.7.2.2 Minimum requirement

The minimum requirement for IAB-DU type 1-O and IAB-DU type 2-O are in TS 38.174 [2], clause 9.7.2.2.

The minimum requirement for IAB-MT type 1-O and IAB-MT type 2-O are in TS 38.174 [2], clause 9.7.2.3.

6.7.2.3 Test purpose

The test purpose is to verify that the emission at the RIB does not occupy an excessive bandwidth for the service to be provided and is, therefore, not likely to create interference to other users of the spectrum beyond undue limits.

6.7.2.4 Method of test

6.7.2.4.1 Initial conditions

Test environment: Normal, see annex B.2.

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

Directions to be tested: OTA coverage range reference direction (D.35).

Beams to be tested: Declared beam with the highest intended EIRP for the narrowest intended beam corresponding to the smallest BeWθ, or for the narrowest intended beam corresponding to the smallest BeWϕ (D.3, D.11).

Aggregated IAB channel bandwidth positions to be tested for contiguous carrier aggregation: M_{BW Channel CA}; see clause 4.9.1.

For a IAB declared to be capable of single carrier operation, start transmission according to the applicable test configuration in clause 4.8 using the corresponding test model IAB-DU-FR1-TM1.1 for IAB-DU type 1-O, IAB-MT-FR1-TM1.1 for IAB-MT type 1-O, IAB-DU-FR2-TM1.1 for IAB-DU type 2-O or IAB-MT-FR2-TM1.1 for IAB-MT type 2-O in clause 4.9.2 at manufacturers declared rated carrier EIRP (P_rated,c,EIRP, D.11).

For a IAB declared to be capable of contiguous carrier aggregation operation, set the IAB to transmit according to IABDU-FR1-TM1.1 for IAB-DU type 1-O, IAB-MT-FR1-TM1.1 for IAB-MT type 1-O, IAB-DU-FR2-TM1.1 for IAB-DU type 2-O or IAB-MT-FR2-TM1.1 for IAB-MT type 2-O in clause 4.9.2 on all carriers configured using the applicable test configuration and corresponding power setting specified in clauses 4.7.2.3.1 and 4.8.

For an IAB declared to be capable of Simultaneous transmission between IAB-DU and IAB-MT (D. IAB-3), set the IAB to transmit according to IABDU-FR1-TM1.1 for IAB-DU type 1-O, IAB-MT-FR1-TM1.1 for IAB-MT type 1-O, IAB-DU-FR2-TM1.1 for IAB-DU type 2-O or IAB-MT-FR2-TM1.1 for IAB-MT type 2-O in clause 4.9.2 using the applicable test configuration and corresponding power setting specified in clauses 4.7.2 and 4.8.

6.7.2.4.2 Procedure

1) Place the IAB at the positioner.

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

3) Orient the positioner (and IAB) in order that the direction to be tested aligns with the test antenna..

4) Configure the beam peak direction of the IAB according to the declared beam direction pair.

5) Set the IAB to transmit signal.

6) Measure the spectrum emission of the transmitted signal using at least the number of measurement points, and across a span, as listed in table 6.7.2.4.2-1 and table 6.7.2.4.2-2. The selected resolution bandwidth (RBW) filter of the analyser shall be 30 kHz or less.

NOTE: The detection mode of the spectrum analyser will not have any effect on the result if the statistical properties of the out-of-OBW power are the same as those of the inside-OBW power. Both are expected to have the Rayleigh distribution of the amplitude of Gaussian noise. In any case where the statistics are not the same, though, the detection mode is power responding. There are at least two ways to be power responding. The spectrum analyser can be set to "sample" detection, with its video bandwidth setting at least three times its RBW setting. Or the analyser may be set to respond to the average of the power (root-mean-square of the voltage) across the measurement cell.

Table 6.7.2.4.2-1: Span and number of measurement points for OBW measurements for FR1

Bandwidth	IAB channel bandwidth BW_Channel (MHz)				Aggregated IAB channel bandwidth BW_{Channel_CA} (MHz)
	10	15	20	> 20	> 20
Span (MHz)	20	30	40
Minimum number of measurement points	400	400	400

Table 6.7.2.4.2-2: Span and number of measurement points for OBW measurements for FR2

Bandwidth	IAB channel bandwidth BW_Channel (MHz)				Aggregated IAB channel bandwidth BW_{Channel_CA} (MHz)
	50	100	200	400	> 50
Span (MHz)
Minimum number of measurement points

7) Compute the total of the EIRP, P0, (in power units, not decibel units) of all the measurement cells in the measurement span. Compute P1, the EIRP outside the occupied bandwidth on each side. P1 is half of the total EIRP outside the bandwidth. P1 is half of (100 % – (occupied percentage)) of P0. Measure the EIRP for any two orthogonal polarizations (denoted p1 and p2) and calculate total radiated transmit power for particular beam direction pair as EIRP = EIRP_p1 + EIRP_p2.

8) Determine the lowest frequency, f1, for which the sum of all EIRP in the measurement cells from the beginning of the span to f1 exceeds P1.

9) Determine the highest frequency, f2, for which the sum of all EIRP in the measurement cells from the end of the span to f2 exceeds P1.

10) Compute the OTA occupied bandwidth as f2 – f1.

In addition, for multi-band RIB(s), the following steps shall apply:

11) For multi-band RIBs and single band tests, repeat the steps 6) – 10) above per involved band where single band test configurations and test models shall apply with no carriers activated in the other band.

6.7.2.5 Test requirement

6.7.2.5.1 IAB-DU type 1-O and IAB-DU type 2-O

The OTA occupied bandwidth for each NR carrier shall be less than the IAB-DU channel bandwidth. For intra-band contiguous CA, the OTA occupied bandwidth shall be less than or equal to the Aggregated IAB-DU Channel Bandwidth.

6.7.2.5.2 IAB-MT type 1-O and IAB-MT type 2-O

The OTA occupied bandwidth for each NR carrier shall be less than the IAB-MT channel bandwidth. For intra-band contiguous CA, the OTA occupied bandwidth shall be less than or equal to the Aggregated IAB-MT Channel Bandwidth.

6.7.3 OTA Adjacent Channel Leakage Power Ratio (ACLR)

6.7.3.1 Definition and applicability

OTA Adjacent Channel Leakage power Ratio (ACLR) is the ratio of the filtered mean power centred on the assigned channel frequency to the filtered mean power centred on an adjacent channel frequency. The measured power is TRP.

The requirement shall be applied per RIB during the transmitter ON period.

6.7.3.2 Minimum requirement

The minimum requirement for IAB-DU type 1-O and IAB-MT type 1-O is in TS 38.174 [2], clause 9.7.3.2.

The minimum requirement for IAB-DU type 2-O and Wide Area IAB-MT type 2-O is in TS 38.174 [2], clause 9.7.3.3.

6.7.3.3 Test purpose

To verify that the OTA adjacent channel leakage ratio requirement shall be met as specified by the minimum requirement.

6.7.3.4 Method of test

6.7.3.4.1 Initial conditions

Test environment: normal; see annex B.2.

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

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

– B_RFBWand T_RFBWin single-band operation, see clause 4.9.1;

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

Directions to be tested: As the requirement is TRP the beam pattern(s) may be set up to optimise the TRP measurement procedure (see annex I) as long as the required TRP level is achieved.

6.7.3.4.2 Procedure

The following procedure for measuring TRP is based on the directional power measurements as described in annex I. An alternative method to measure TRP is to use a characterized and calibrated reverberation chamber if so follow steps 1, 3, 4, 6, 8, 9, 10, 11, 12 and 13.

1) Place the IAB at the positioner.

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

3) The measurement devices characteristics shall be:

– measurement filter bandwidth: defined in clause 6.7.3.5.

– detection mode: true RMS voltage or true power averaging.

4) For single carrier operation, set the IAB to transmit according to the applicable test configuration in clause 4.8 using the corresponding test model(s) in clause 4.9.2 at manufacturers declared rated carrier output power (P_rated,c,TRP).

– For a IAB declared to be capable of multi-carrier and/or CA operation use the applicable test signal configuration and corresponding power setting specified in clauses 4.7.2 and 4.8 using the corresponding test model(s) in clause 4.9.2 on all carriers configured.

– For an IAB node declared to be capable of Simultaneous transmission between IAB-DU and IAB-MT (D. IAB-3), use the applicable test signal configuration and corresponding power setting in clauses 4.7.2 and 4.8 using the corresponding test model(s) in clause 4.9.2 for IAB-MT and IAB-DU.

5) Orient the positioner (and IAB) in order that the direction to be tested aligns with the test antenna such that measurements to determine TRP can be performed (see annex I).

6) Measure the absolute power of the assigned channel frequency and the (adjacent channel frequency).

7) Repeat step 5-6 for all directions in the appropriated TRP measurement grid needed for TRP_Estimate(see annex I).

8) Calculate TRP_Estimate for the absolute total radiated power of the wanted channel and the adjacent channel using the measurements made in Step 7.

9) Calculate relative ACLR estimate.

NOTE 1: ACLR is calculated by the ratio of the absolute TRP of the assigned channel frequency and the absolute TRP of the adjacent frequency channel.

NOTE 2: For FR1 the measurement uncertainty of the reverberation chamber for the relative ACLR is higher than the measurement uncertainty in clause 4.1.2 the test requirements in table 6.7.3.5.1-1 shall be tightened following the procedure in clause 4.1.3.

10) Measure OTA ACLR for the frequency offsets both side of channel frequency as specified in table 6.7.3.5.1-1 for IAB type 1-O or table 6.7.3.5.2-1for IAB type 2-O respectively. In multiple carrier case only offset frequencies below the lowest and above the highest carrier frequency used shall be measured.

11) For the OTA ACLR requirement applied inside sub-block gap for non-contiguous spectrum operation or inside Inter RF Bandwidth gap for multi-band operation:

a) Measure OTA ACLR inside sub-block gap or Inter RF Bandwidth gap, if applicable.

b) Measure OTA CACLR inside sub-block gap or Inter RF Bandwidth gap, if applicable.

12) Repeat the test with the channel set-up using IAB- FR1-TM1.2 defined in clause 4.9.2 in TS 38.176-1 [3] for IAB type 1-O.

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

13) For IAB type 1-O and multi-band RIB 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.

6.7.3.5 Test requirements

6.7.3.5.1 IAB-DU type 1-O and IAB-MT type 1-O

For the OTA ACLR requirement either the OTA ACLR limits in tables 6.7.3.5.1-1/3 or the OTA ACLR absolute limits in table 6.7.3.5.1-2 shall apply, whichever is less stringent. The OTA CACLR limits in table 6.7.3.5.1-4 or the OTA CACLR absolute limits in table 6.7.3.5.1-5 shall apply, whichever is less stringent.

The CACLR in a sub-block gap and Inter RF Bandwidth gap is the ratio of:

a) the sum of the filtered mean power centred on the assigned channel frequencies for the two carriers adjacent to each side of the sub-block gap or the Inter RF Bandwidth gap, and

b) the filtered mean power centred on a frequency channel adjacent to one of the respective sub-block edges or Base Station RF Bandwidth edges.

The assumed filter for the adjacent channel frequency is defined in table 6.7.3.5.1-4 and the filters on the assigned channels are defined in table 6.7.3.5.1-6.

For operation in paired and unpaired spectrum, the OTA ACLR measurement result shall not be less than the OTA ACLR limit specified in table 6.7.3.5.1-1.

Table 6.7.3.5.1-1: IAB-DU and IAB-MT type 1-O ACLR limit

IAB channel bandwidth of lowest/highest NR carrier transmitted BW_Channel (MHz)	IAB adjacent channel centre frequency offset below the lowest or above the highest carrier centre frequency transmitted	Assumed adjacent channel carrier (informative)	Filter on the adjacent channel frequency and corresponding filter bandwidth	OTA ACLR limit (0 – 3 GHz)	OTA ACLR limit (3 – 6 GHz)
10, 15, 20, 25, 30, 40, 50, 60, 70, 80, 90,100	BW_Channel	NR of same BW (Note 2)	Square (BW_Config)	44 dB	43.8 dB
	2 x BW_Channel	NR of same BW (Note 2)	Square (BW_Config)	44 dB	43.8 dB
	BW_Channel/2 + 2.5 MHz	5 MHz E-UTRA	Square (4.5 MHz)	44 dB (Note 3)	43.8 dB (Note 3)
	BW_Channel/2 + 7.5 MHz	5 MHz E-UTRA	Square (4.5 MHz)	44 dB (Note 3)	43.8 dB (Note 3)
NOTE 1: BW_Channel and BW_Config are the IAB channel bandwidth and transmission bandwidth configuration of the lowest/highest NR carrier transmitted on the assigned channel frequency. NOTE 2: With SCS that provides largest transmission bandwidth configuration (BW_Config). NOTE 3: The requirements are applicable when the band is also defined for E-UTRA or UTRA.

The absolute total power measurement shall not exceed the OTA ACLR absolute limit specified in table 6.7.3.5.1-2.

Table 6.7.3.5.1-2: IAB-DU and IAB-MT type 1-O ACLR absolute limit

IAB category / IAB class	OTA ACLR absolute limit
Category A Wide Area IAB-DU and Category A Wide Area IAB-MT	-4 dBm/MHz
Category B Wide Area IAB-DU and Category B Wide Area IAB-MT	-6 dBm/MHz
Medium Range IAB-DU	-16 dBm/MHz
Local Area IAB-DU and Local Area IAB-MT	-23 dBm/MHz
NOTE 1: The test requirement is derived from the basic limit a scaling factor of 9 dB and any applicable TT.

For operation in non-contiguous spectrum or multiple bands, the OTA ACLR measurement result shall not be less than the OTA ACLR limit specified in table 6.7.3.5.1-3.

Table 6.7.3.5.1-3: IAB-DU and IAB-MT type 1-O ACLR limit in non-contiguous spectrum or multiple bands

IAB-DU and IAB-MT channel bandwidth of lowest/highest NR carrier transmitted BW_Channel (MHz)	Sub-block or Inter RF Bandwidth gap size (Wgap) where the limit applies (MHz)	IAB-DU and IAB-MT adjacent channel centre frequency offset below or above the sub-block or Base Station RF Bandwidth edge (inside the gap)	Assumed adjacent channel carrier	Filter on the adjacent channel frequency and corresponding filter bandwidth	OTA ACLR limit (0-3GHz)	OTA ACLR limit (3-6GHz)
10, 15, 20	W_gap ≥ 15 (Note 3) W_gap ≥ 45 (Note 4)	2.5 MHz	5 MHz NR (Note 2)	Square (BW_Config)	44 dB	43.8 dB
	Wgap ≥ 20 (Note 3) Wgap ≥ 50 (Note 4)	7.5 MHz	5 MHz NR (Note 2)	Square (BW_Config)	44 dB	43.8 dB
25, 30, 40, 50, 60, 70, 80, 90, 100	Wgap ≥ 60 (Note 4) Wgap ≥ 30 (Note 3)	10 MHz	20 MHz NR (Note 2)	Square (BW_Config)	44 dB	43.8 dB
	Wgap ≥ 80 (Note 4) Wgap ≥ 50 (Note 3)	30 MHz	20 MHz NR (Note 2)	Square (BW_Config)	44 dB	43.8 dB
NOTE 1: BW_Config is the transmission bandwidth configuration of the assumed adjacent channel carrier. NOTE 2: With SCS that provides largest transmission bandwidth configuration (BW_Config). NOTE 3: Applicable in case the IAB channel bandwidth of the NR carrier transmitted at the other edge of the gap is 10, 15, 20 MHz. NOTE 4: Applicable in case the IAB channel bandwidth of the NR carrier transmitted at the other edge of the gap is 25, 30, 40, 50, 60, 70, 80, 90, 100 MHz.

The OTA CACLR measurement result shall not less than the OTA CACLR limit specified in table 6.7.3.5.1-4.

Table 6.7.3.5.1-4: IAB-DU and IAB-MT type 1-O CACLR limit

IAB-DU and IAB-MT channel bandwidth of lowest/highest NR carrier transmitted BW_Channel (MHz)	Sub-block or Inter RF Bandwidth gap size (Wgap) where the limit applies (MHz)	IAB-DU and IAB-MT adjacent channel centre frequency offset below or above the sub-block or Base Station RF Bandwidth edge (inside the gap)	Assumed adjacent channel carrier	Filter on the adjacent channel frequency and corresponding filter bandwidth	OTA CACLR limit (0-3 GHz)	OTA CACLR limit (3-6 GHz)
10, 15, 20	5 ≤ Wgap < 15 (Note 3) 5 ≤ Wgap < 45 (Note 4)	2.5 MHz	5 MHz NR (Note 2)	Square (BW_Config)	44 dB	43.8 dB
	10 < Wgap < 20 (Note 3) 10 ≤ Wgap < 50 (Note 4)	7.5 MHz	5 MHz NR (Note 2)	Square (BW_Config)	44 dB	43.8 dB
25, 30, 40, 50, 60, 70, 80,90, 100	20 ≤ Wgap < 60 (Note 4) 20 ≤ Wgap < 30 (Note 3)	10 MHz	20 MHz NR (Note 2)	Square (BW_Config)	44 dB	43.8 dB
	40 < Wgap < 80 (Note 4) 40 ≤ Wgap < 50 (Note 3)	30 MHz	20 MHz NR (Note 2)	Square (BW_Config)	44 dB	43.8 dB
NOTE 1: BW_Config is the transmission bandwidth configuration of the assumed adjacent channel carrier. NOTE 2: With SCS that provides largest transmission bandwidth configuration (BW_Config). NOTE 3: Applicable in case the IAB channel bandwidth of the NR carrier transmitted at the other edge of the gap is 10, 15, 20 MHz. NOTE 4: Applicable in case the IAB channel bandwidth of the NR carrier transmitted at the other edge of the gap is 25, 30, 40, 50, 60, 70, 80, 90, 100 MHz.

The absolute total power measurement shall not exceed the OTA CACLR absolute limit specified in table 6.7.3.5.1-5.

Table 6.7.3.5.1-5: IAB-DU and IAB-MT type 1-O CACLR absolute limit

IAB category / IAB class	OTA CACLR absolute limit
Category A Wide Area IAB-DU and Category A Wide Area IAB-MT	-4 dBm/MHz
Category B Wide Area IAB-DU and Category B Wide Area IAB-MT	-6 dBm/MHz
Medium Range IAB-DU	-16 dBm/MHz
Local Area IAB-DU and Local Area IAB-MT	-23 dBm/MHz
NOTE 1: The test requirement is derived from the basic limit a scaling factor of 9 dB and any applicable TT.

Table 6.7.3.5.1-6: Filter parameters for the assigned channel

RAT of the carrier adjacent to the sub-block or Inter RF Bandwidth gap	Filter on the assigned channel frequency and corresponding filter bandwidth
NR	NR of same BW with SCS that provides largest transmission bandwidth configuration

6.7.3.5.2 IAB-DU type 2-O and Wide Area IAB-MT type 2-O

The OTA ACLR absolute limit in table 6.7.3.5.2-2 or the OTA ACLR limit in table 6.7.3.5.2-1/3, whichever is less stringent, shall apply. The OTA CACLR absolute limit in table 6.7.3.5.2-5 or the OTA CACLR limit in table 6.7.3.5.2-4, whichever is less stringent, shall apply.

For a RIB operating in multi-carrier or contiguous CA, the OTA ACLR requirements in table 6.7.3.5.2-1 shall apply to IAB-DU and IAB-MT channel bandwidths of the outermost carrier for the frequency ranges defined in the table. For a RIB operating in non-contiguous spectrum, the OTA ACLR requirement in table 6.7.3.5.2-3 shall apply in sub-block gaps for the frequency ranges defined in the table, while the OTA CACLR requirement in table 6.7.3.5.2-4 shall apply in sub-block gaps for the frequency ranges defined in the table.

The CACLR in a sub-block gap is the ratio of:

a) the sum of the filtered mean power centred on the assigned channel frequencies for the two carriers adjacent to each side of the sub-block gap, and

b) the filtered mean power centred on a frequency channel adjacent to one of the respective sub-block edges.

The assumed filter for the adjacent channel frequency is defined in table 6.7.3.5.2-4 and the filters on the assigned channels are defined in table 6.7.3.5.2-6.

For operation in non-contiguous spectrum, the CACLR for NR carriers located on either side of the sub-block gap shall be higher than the value specified in table 6.7.3.5.2-4.

Table 6.7.3.5.2-1: IAB-DU type 2-O and Wide area IAB-MT type 2-O ACLR limit

IAB-DU and IAB-MT channel bandwidth of lowest/highest carrier transmitted

BW_Channel (MHz)

IAB-DU and IAB-MT adjacent channel centre frequency offset below the lowest or above the highest carrier centre frequency transmitted

Assumed adjacent channel carrier

Filter on the adjacent channel frequency and corresponding filter bandwidth

ACLR limit

(dB)

50, 100, 200, 400

BW_Channel

NR of same BW (Note 2)

Square (BW_Config)

25.7 for IAB-DU (Note 3)

23.4 for IAB-DU (Note 4)

25.2 for IAB-MT (Note 3)

23.1 for IAB-MT (Note 4)

NOTE 1: BW_Channel and BW_Config are the IAB-DU and IAB-MT channel bandwidth and transmission bandwidth configuration of the lowest/highest carrier transmitted on the assigned channel frequency.

NOTE 2: With SCS that provides largest transmission bandwidth configuration (BW_Config).

NOTE 3: Applicable to bands defined within the frequency spectrum range of 24.25 – 33.4 GHz

NOTE 4: Applicable to bands defined within the frequency spectrum range of 37 – 52.6 GHz

Table 6.7.3.5.2-2: IAB-DU type 2-O and Wide area IAB-MT type 2-O ACLR absolute limit

IAB-DU and IAB-MT class	ACLR absolute limit
Wide area IAB-DU	-10.3 dBm/MHz
Wide Area IAB-MT	-10.1 dBm/MHz (Note 1) -10.0 dBm/MHz (Note 2)
Medium range IAB-DU	-17.3 dBm/MHz
Local area IAB-DU	-17.3 dBm/MHz
NOTE 1: Applicable to bands defined within the frequency spectrum range of 24.25 – 33.4 GHz NOTE 2: Applicable to bands defined within the frequency spectrum range of 37 – 52.6 GHz

Table 6.7.3.5.2-3: IAB DU type 2-O and Wide Area IAB-MT type 2-O ACLR limit in non-contiguous spectrum

IAB-DU and IAB-MT channel bandwidth of lowest/highest carrier transmitted (MHz)	Sub-block gap size (W_gap) where the limit applies (MHz)	IAB-DU and IAB-MT adjacent channel centre frequency offset below or above the sub-block edge (inside the gap)	Assumed adjacent channel carrier	Filter on the adjacent channel frequency and corresponding filter bandwidth	ACLR limit (dB)
50, 100	W_gap≥ 100 (Note 5) W_gap≥ 250 (Note 6)	25 MHz	50 MHz NR (Note 2)	Square (BW_Config)	25.7 for IAB-DU (Note 3) 23.4 for IAB-DU (Note 4) 25.2 for IAB-MT (Note 3) 23.1 for IAB-MT (Note 4)
200, 400	W_gap≥ 400 (Note 6) W_gap≥ 250 (Note 5)	100 MHz	200 MHz NR (Note 2)	Square (BW_Config)	25.7 for IAB-DU (Note 3) 23.4 for IAB-DU (Note 4) 25.2 for IAB-MT (Note 3) 23.1 for IAB-MT (Note 4)
NOTE 1: BW_Config is the transmission bandwidth configuration of the assumed adjacent channel carrier. NOTE 2: With SCS that provides largest transmission bandwidth configuration (BW_Config). NOTE 3: Applicable to bands defined within the frequency spectrum range of 24.25 – 33.4 GHz. NOTE 4: Applicable to bands defined within the frequency spectrum range of 37 – 52.6 GHz. NOTE 5: Applicable in case the IAB-DU or IAB-MT channel bandwidth of the NR carrier transmitted at the other edge of the gap is 50 or 100 MHz. NOTE 6: Applicable in case the IAB-DU or IAB-MT channel bandwidth of the NR carrier transmitted at the other edge of the gap is 200 or 400 MHz.

Table 6.7.3.5.2-4: IAB DU type 2-O and Wide Area IAB-MT type 2-O CACLR limit in non-contiguous spectrum

IAB-DU and IAB-MT channel bandwidth of lowest/highest carrier transmitted (MHz)	Sub-block gap size (W_gap) where the limit applies (MHz)	IAB-DU and IAB-MT adjacent channel centre frequency offset below or above the sub-block edge (inside the gap)	Assumed adjacent channel carrier	Filter on the adjacent channel frequency and corresponding filter bandwidth	CACLR limit (dB)
50, 100	50 ≤W_gap< 100 (Note 5) 50 ≤W_gap< 250 (Note 6)	25 MHz	50 MHz NR (Note 2)	Square (BW_Config)	25.7 for IAB-DU (Note 3) 23.4 for IAB-DU (Note 4) 25.2 for IAB-MT (Note 3) 23.1 for IAB-MT (Note 4)
200, 400	200 ≤W_gap< 400 (Note 6) 200 ≤W_gap< 250 (Note 5)	100 MHz	200 MHz NR (Note 2)	Square (BW_Config)	25.7 for IAB-DU (Note 3) 23.4 for IAB-DU (Note 4) 25.2 for IAB-MT (Note 3) 23.1 for IAB-MT (Note 4)
NOTE 1: BW_Config is the transmission bandwidth configuration of the assumed adjacent channel carrier. NOTE 2: With SCS that provides largest transmission bandwidth configuration (BW_Config). NOTE 3: Applicable to bands defined within the frequency spectrum range of 24.25 – 33.4 GHz. NOTE 4: Applicable to bands defined within the frequency spectrum range of 37 – 52.6 GHz. NOTE 5: Applicable in case the IAB-DU or IAB-MT channel bandwidth of the NR carrier transmitted at the other edge of the gap is 50 or 100 MHz. NOTE 6: Applicable in case the IAB-DU or IAB-MT channel bandwidth of the NR carrier transmitted at the other edge of the gap is 200 or 400 MHz.

Table 6.7.3.5.2-5: IAB-DU type 2-O and Wide area IAB-MT type 2-O CACLR absolute limit

IAB-DU and IAB-MT class	CACLR absolute limit
Wide area IAB-DU	-10.3 dBm/MHz
Wide area IAB-MT	-10.1 dBm/MHz (Note 1) -10.0 dBm/MHz (Note 2)
Medium range IAB-DU	-17.3 dBm/MHz
Local area IAB-DU	-17.3 dBm/MHz
NOTE 1: Applicable to bands defined within the frequency spectrum range of 24.25 – 33.4 GHz NOTE 2: Applicable to bands defined within the frequency spectrum range of 37 – 52.6 GHz

Table 6.7.3.5.2-6: Filter parameters for the assigned channel

RAT of the carrier adjacent to the sub-block gap	Filter on the assigned channel frequency and corresponding filter bandwidth
NR	NR of same BW with SCS that provides largest transmission bandwidth configuration

6.7.3.5.3 Local Area IAB-MT type 2-O

The OTA ACLR absolute limit in table 6.7.3.5.3-2 or the ACLR limit in table 6.7.3.5.3-1/3, whichever is less stringent, shall apply. The OTA CACLR absolute limit in table 6.7.3.5.3-5 or the CACLR limit in table 6.7.3.5.3-4, whichever is less stringent, shall apply.

Requirements specified for Local Area IAB-DU type 2-O in clause 6.7.3.5.3 shall apply to Local Area IAB-MT type 2-O during transmission in DL timeslot.

For a RIB operating in multi-carrier or contiguous CA, the OTA ACLR requirements in table 6.7.3.5.3-1 shall apply to IAB-MT channel bandwidths of the outermost carrier for the frequency ranges defined in the table. For a RIB operating in non-contiguous spectrum, the OTA ACLR requirement in table 6.7.3.5.3-3 shall apply in sub-block gaps for the frequency ranges defined in the table, while the OTA CACLR requirement in table 6.7.3.5.3-4 shall apply in sub-block gaps for the frequency ranges defined in the table.

The CACLR in a sub-block gap is the ratio of:

a) the sum of the filtered mean power centred on the assigned channel frequencies for the two carriers adjacent to each side of the sub-block gap, and

b) the filtered mean power centred on a frequency channel adjacent to one of the respective sub-block edges.

The assumed filter for the adjacent channel frequency is defined in table 6.7.3.5.3-4 and the filters on the assigned channels are defined in table 6.7.3.5.3-6.

For operation in non-contiguous spectrum, the CACLR for NR carriers located on either side of the sub-block gap shall be higher than the value specified in table 6.7.3.5.3-4.

Table 6.7.3.3.5-1: Local Area IAB-MT type 2-O ACLR limit

IAB-MT channel bandwidth of lowest/highest carrier transmitted

BW_Channel (MHz)

IAB-MT adjacent channel centre frequency offset below the lowest or above the highest carrier centre frequency transmitted

Assumed adjacent channel carrier

Filter on the adjacent channel frequency and corresponding filter bandwidth

ACLR limit

(dB)

50, 100, 200, 400

BW_Channel

NR of same BW (Note 2)

Square (BW_Config)

21.2 (Note 3)

21.1 (Note 4)

NOTE 1: BW_Channel and BW_Config are the IAB-MT channel bandwidth and transmission bandwidth configuration of the lowest/highest carrier transmitted on the assigned channel frequency.

NOTE 2: With SCS that provides largest transmission bandwidth configuration (BW_Config).

NOTE 3: Applicable to bands defined within the frequency spectrum range of 24.25 – 33.4 GHz

NOTE 4: Applicable to bands defined within the frequency spectrum range of 37 – 52.6 GHz

Table 6.7.3.5.3-2: Local Area IAB-MT type 2-O ACLR absolute limit

IAB-MT class

ACLR absolute limit

Local area IAB-MT

-17.1 dBm/MHz (Note 1)

-17.0 dBm/MHz (Note 2)

NOTE 1: Applicable to bands defined within the frequency spectrum range of 24.25 – 33.4 GHz

NOTE 2: Applicable to bands defined within the frequency spectrum range of 37 – 52.6 GHz

Table 6.7.3.5.3-3: Local Area IAB-MT type 2-O ACLR limit in non-contiguous spectrum

IAB-MT channel bandwidth of lowest/highest carrier transmitted (MHz)	Sub-block gap size (W_gap) where the limit applies (MHz)	IAB-MT adjacent channel centre frequency offset below or above the sub-block edge (inside the gap)	Assumed adjacent channel carrier	Filter on the adjacent channel frequency and corresponding filter bandwidth	ACLR limit
50, 100	W_gap≥ 100 (Note 4) W_gap≥ 250 (Note 5)	25 MHz	50 MHz NR (Note 2)	Square (BW_Config)	21.2 (Note 3) 21.1 (Note 6)
200, 400	W_gap≥ 400 (Note 5) W_gap≥ 250 (Note 4)	100 MHz	200 MHz NR (Note 2)	Square (BW_Config)	21.2 (Note 3) 21.1 (Note 6)
NOTE 1: BW_Config is the transmission bandwidth configuration of the assumed adjacent channel carrier. NOTE 2: With SCS that provides largest transmission bandwidth configuration (BW_Config). NOTE 3: Applicable to bands defined within the frequency spectrum range of 24.25 – 33.4 GHz. NOTE 4: Applicable in case the IAB-MT channel bandwidth of the NR carrier transmitted at the other edge of the gap is 50 or 100 MHz. NOTE 5: Applicable in case the IAB-MT channel bandwidth of the NR carrier transmitted at the other edge of the gap is 200 or 400 MHz. NOTE 6: Applicable to bands defined within the frequency spectrum range of 37 – 52.6 GHz.

Table 6.7.3.5.3-4: Local Area IAB-MT type 2-O CACLR limit in non-contiguous spectrum

IAB-MT channel bandwidth of lowest/highest carrier transmitted (MHz)	Sub-block gap size (W_gap) where the limit applies (MHz)	IAB-MT adjacent channel centre frequency offset below or above the sub-block edge (inside the gap)	Assumed adjacent channel carrier	Filter on the adjacent channel frequency and corresponding filter bandwidth	CACLR limit
50, 100	50 ≤W_gap< 100 (Note 4) 50 ≤W_gap< 250 (Note 5)	25 MHz	50 MHz NR (Note 2)	Square (BW_Config)	21.2 (Note 3) 21.1 (Note 6)
200, 400	200 ≤W_gap< 400 (Note 5) 200 ≤W_gap< 250 (Note 4)	100 MHz	200 MHz NR (Note 2)	Square (BW_Config)	21.2 (Note 3) 21.1 (Note 6)
NOTE 1: BW_Config is the transmission bandwidth configuration of the assumed adjacent channel carrier. NOTE 2: With SCS that provides largest transmission bandwidth configuration (BW_Config). NOTE 3: Applicable to bands defined within the frequency spectrum range of 24.25 – 33.4 GHz. NOTE 4: Applicable in case the IAB-MT channel bandwidth of the NR carrier transmitted at the other edge of the gap is 50 or 100 MHz. NOTE 5: Applicable in case the IAB-MT channel bandwidth of the NR carrier transmitted at the other edge of the gap is 200 or 400 MHz.

Table 6.7.3.5.3-5: Local Area IAB-MT type 2-O CACLR absolute limit

IAB-MT class

CACLR absolute limit

Local area IAB-MT

-17.1 dBm/MHz (Note 1)

-17.0 dBm/MHz (Note 2)

NOTE 1: Applicable to bands defined within the frequency spectrum range of 24.25 – 33.4 GHz

NOTE 2: Applicable to bands defined within the frequency spectrum range of 37 – 52.6 GHz

Table 6.7.3.5.3-6: Filter parameters for the assigned channel

RAT of the carrier adjacent to the sub-block gap	Filter on the assigned channel frequency and corresponding filter bandwidth
NR	NR of same BW with SCS that provides largest transmission bandwidth configuration

6.7.4 OTA operating band unwanted emissions

6.7.4.1 Definition and applicability

The OTA limits for operating band unwanted emissions are specified as TRP per RIB, unless otherwise stated.

6.7.4.1.1 IAB-DU type 1-O

For IAB-DU type 1-O, for a RIB operating in multi-carrier or contiguous CA, the requirements apply to IAB-DU channel bandwidths of the outermost carrier. In addition, for a RIB operating in non-contiguous spectrum, the requirements shall apply inside any sub-block gap. In addition, for a multi-band RIB, the requirements shall apply inside any Inter RF Bandwidth gap.

6.7.4.1.2 IAB-MT type 1-O

For IAB-MT type 1-O, for a RIB operating in multi-carrier or contiguous CA, the requirements apply to IAB-MT channel bandwidths of the outermost carrier. In addition, for a RIB operating in non-contiguous spectrum, the requirements shall apply inside any sub-block gap. In addition, for a multi-band RIB, the requirements shall apply inside any Inter RF Bandwidth gap.

6.7.4.1. 3 IAB-DU type 2-O and IAB-MT type 2-O

For IAB-DU type 2-O and IAB-MT type 2-O, for a RIB operating in multi-carrier or contiguous CA, the requirements apply to the frequencies (Δf_OBUE) starting from the edge of the contiguous transmission bandwidth. In addition, for a RIB operating in non-contiguous spectrum, the requirements apply inside any sub-block gap.

6.7.4.2 Minimum requirement

The minimum requirement for IAB-DU type 1-O is defined in TS 38.174 [2], clause 9.7.4.2.

The minimum requirement for IAB-MT type 1-O is defined in TS 38.174 [2], clause 9.7.4.3.

The minimum requirement for IAB-DU type 2-O and IAB-MT type 2-O are defined in TS 38.174 [2], clause 9.7.4.5.

6.7.4.3 Test purpose

This test measures the emissions of the IAB-Node, close to the assigned channel bandwidth of the wanted signal, while the IAB-Node is in operation.

6.7.4.4 Method of test

6.7.4.4.1 Initial conditions

Test environment: normal; see annex B.2.

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

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

– B_RFBW, M_RFBWand T_RFBWin single-band operation, see clause 4.9.1;

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

Directions to be tested: As the requirement is TRP the beam pattern(s) may be set up to optimise the TRP measurement procedure (see annex I) as long as the required TRP level is achieved.

6.7.4.4.2 Procedure

1) Place the IAB-Node at the positioner.

2) Align the manufacturer declared coordinate system orientation (D.2) of the IAB-Node with the test system.

3) The measurement devices characteristics shall be:

– measurement filter bandwidth: defined in clause 6.7.4.5.

– detection mode: true RMS voltage or true power averaging.

4) For single carrier operation, set the IAB-Node to transmit according to the applicable test configuration in clause 4.8 using the corresponding test model(s) in clause 4.9.2 at manufacturers declared rated carrier output power (P_rated,c,TRP).

– For a IAB declared to be capable of multi-carrier and/or CA operation, use the applicable test signal configuration and corresponding power setting specified in clause 4.7.2 and 4.8 using the corresponding test model(s) in clause 4.9.2 on all carriers configured.

– For an IAB node declared to be capable of Simultaneous transmission between IAB-DU and IAB-MT (D.IAB-3), use the applicable test signal configuration and corresponding power setting in clauses 4.7.2 and 4.8 using the corresponding test model(s) in clause 4.9.2 for IAB-DU and IAB-MT.

5) Orient the positioner (and IAB) in order that the direction to be tested aligns with the test antenna such that measurements to determine TRP can be performed (see annex I).

6) Sweep the centre frequency of the measurement filter in contiguous steps and measure emission power within the specified frequency ranges with the specified measurement bandwidth.

7) Repeat step 5-6 for all directions in the appropriated TRP measurement grid needed for TRP_Estimate (see annex I).

8) Calculate TRP_Estimate using the measurements made in step 6.

9) For IAB type 1-O and multi-band RIB 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.

6.7.4.5 Test requirements

6.7.4.5.1 IAB type 1-O

The emission measurement result shall not exceed the maximum levels specified in tables 6.7.4.5.1.1-1 to 6.7.4.5.1.5-3, where:

– Δf is the separation between the channel edge frequency and the nominal -3dB point of the measuring filter closest to the carrier frequency.

– f_offset is the separation between the channel edge frequency and the centre of the measuring filter.

– f_offset_max is the offset to the frequency Δf_OBUE MHz outside the downlink operating band.

– Δf_max is equal to f_offset_max minus half of the bandwidth of the measuring filter.

For a multi-band RIB inside any Inter RF Bandwidth gaps with W_gap < 2*Δf_OBUE, emissions shall not exceed the cumulative sum of the test requirements specified at the IAB RF Bandwidth edges on each side of the Inter RF Bandwidth gap. The test requirement for IAB RF Bandwidth edge is specified in the tables 6.7.4.5.1.1-1 to 6.7.4.5.1.5-3 below, where in this case:

– Δf is the separation between the IAB RF Bandwidth edge frequency and the nominal -3 dB point of the measuring filter closest to the IAB RF Bandwidth edge.

– f_offset is the separation between the IAB RF Bandwidth edge frequency and the centre of the measuring filter.

– f_offset_max is equal to the Inter RF Bandwidth gap minus half of the bandwidth of the measuring filter.

– Δf_max is equal to f_offset_max minus half of the bandwidth of the measuring filter.

For a multi-band RIB, the operating band unwanted emission limits apply also in a supported operating band without any carrier transmitted, in the case where there are carrier(s) transmitted in another supported operating band. In this case, no cumulative limit is applied in the inter-band gap between a supported downlink operating band with carrier(s) transmitted and a supported downlink operating band without any carrier transmitted and

– In case the inter-band gap between a supported downlink operating band with carrier(s) transmitted and a supported downlink operating band without any carrier transmitted is less than 2*Δf_OBUE, f_offset_max shall be the offset to the frequency Δf_OBUE MHz outside the outermost edges of the two supported downlink operating bands and the operating band unwanted emission limit of the band where there are carriers transmitted, as defined in the tables of the present clause, shall apply across both downlink bands.

– In other cases, the operating band unwanted emission limit of the band where there are carriers transmitted, as defined in the tables of the present clause for the largest frequency offset (Δf_max), shall apply from Δf_OBUE MHz below the lowest frequency, up to Δf_OBUEMHz above the highest frequency of the supported downlink operating band without any carrier transmitted.

For a multicarrier single-band RIB or a single-band RIB configured for intra-band contiguous or non-contiguous carrier aggregation the definitions above apply to the lower edge of the carrier transmitted at the lowest carrier frequency and the upper edge of the carrier transmitted at the highest carrier frequency within a specified frequency band.

In addition inside any sub-block gap for a single-band RIB operating in non-contiguous spectrum, emissions shall not exceed the cumulative sum of the test requirements specified for the adjacent sub blocks on each side of the sub block gap. The test requirement for each sub block is specified in the tables 6.7.4.5.1.1-1 to 6.7.4.5.1.5-3 below, where in this case:

– Δf is the separation between the sub block edge frequency and the nominal -3 dB point of the measuring filter closest to the sub block edge.

– f_offset is the separation between the sub block edge frequency and the centre of the measuring filter.

– f_offset_max is equal to the sub block gap bandwidth minus half of the bandwidth of the measuring filter.

– Δf_max is equal to f_offset_max minus half of the bandwidth of the measuring filter.

6.7.4.5.1.1 Wide Area IAB-DU and Wide Area IAB-MT (Category A)

For operating in Bands n41, n77, n78, n79, emissions shall not exceed the maximum levels specified in tables 6.7.4.5.1.1-1 to 6.7.4.5.1.1-3:

Table 6.7.4.5.1.1-1: Wide Area IAB-DU and Wide Area IAB-MT operating band unwanted emission limits
(1 GHz < NR bands ≤ 3 GHz) for Category A

Frequency offset of measurement filter ‑3dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test requirement (Note 1, 2, 4)	Measurement bandwidth
0 MHz ≤ Δf < 5 MHz	0.05 MHz ≤ f_offset < 5.05 MHz	3.8 dBm – 7/5(f_offset/MHz – 0.05) dB	100 kHz
5 MHz ≤ Δf < min(10 MHz, Δf_max)	5.05 MHz ≤ f_offset < min(10.05 MHz, f_offset_max)	-3.2 dBm	100 kHz
10 MHz ≤ Δf ≤ Δf_max	10.05 MHz ≤ f_offset < f_offset_max	-4 dBm (Note 3)	100 kHz
NOTE 1: For a IAB supporting non-contiguous spectrum operation within any operating band, the emission limits within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap. Exception is f ≥ 10MHz from both adjacent sub blocks on each side of the sub-block gap, where the emission limits within sub-block gaps shall be -4 dBm/100 kHz. NOTE 2: For a multi-band RIB with Inter RF Bandwidth gap < 2*Δf_OBUE the emission limits within the Inter RF Bandwidth gaps is calculated as a cumulative sum of contributions from adjacent sub-blocks or RF Bandwidth on each side of the Inter RF Bandwidth gap. NOTE 3: The requirement is not applicable when Δf_max < 10 MHz. NOTE 4: The test requirement is derived from the basic limit a scaling factor of 9 dB and any applicable TT.

Table 6.7.4.5.1.1-2: Wide Area IAB-DU and Wide Area IAB-MT operating band unwanted emission limits
(3 GHz < NR bands ≤ 4.2 GHz) for Category A

Frequency offset of measurement filter ‑3dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test requirement (Note 1, 2, 4)	Measurement bandwidth
0 MHz ≤ Δf < 5 MHz	0.05 MHz ≤ f_offset < 5.05 MHz	4 dBm-7/5(f_offset/MHz-0.05)dB	100 kHz
5 MHz ≤ Δf < min(10 MHz, Δf_max)	5.05 MHz ≤ f_offset < min(10.05 MHz, f_offset_max)	-3 dBm	100 kHz
10 MHz ≤ Δf ≤ Δf_max	10.5 MHz ≤ f_offset < f_offset_max	-4 dBm (Note 3)	1MHz
NOTE 1: For a IAB supporting non-contiguous spectrum operation within any operating band, the emission limits within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap, where the contribution from the far-end sub-block shall be scaled according to the measurement bandwidth of the near-end sub-block. Exception is f ≥ 10MHz from both adjacent sub blocks on each side of the sub-block gap, where the emission limits within sub-block gaps shall be ‑4 dBm/1 MHz. NOTE 2: For a multi-band RIB with Inter RF Bandwidth gap < 2*Δf_OBUEthe emission limits within the Inter RF Bandwidth gaps is calculated as a cumulative sum of contributions from adjacent sub-blocks or RF Bandwidth on each side of the Inter RF Bandwidth gap, where the contribution from the far-end sub-block or RF Bandwidth shall be scaled according to the measurement bandwidth of the near-end sub-block or RF Bandwidth. NOTE 3: The requirement is not applicable when Δf_max < 10 MHz. NOTE 4: The test requirement is derived from the basic limit a scaling factor of 9 dB and any applicable TT.

Table 6.7.4.5.1.1-3: Wide Area IAB-DU and Wide Area IAB-MT operating band unwanted emission limits
(4.2 GHz < NR bands ≤ 6 GHz) for Category A

Frequency offset of measurement filter ‑3dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test requirement (Note 1, 2, 4)	Measurement bandwidth
0 MHz ≤ Δf < 5 MHz	0.05 MHz ≤ f_offset < 5.05 MHz	4 dBm-7/5(f_offset/MHz-0.05)dB	100 kHz
5 MHz ≤ Δf < min(10 MHz, Δf_max)	5.05 MHz ≤ f_offset < min(10.05 MHz, f_offset_max)	-3 dBm	100 kHz
10 MHz ≤ Δf ≤ Δf_max	10.5 MHz ≤ f_offset < f_offset_max	-4 dBm (Note 3)	1MHz
NOTE 1: For a IAB supporting non-contiguous spectrum operation within any operating band, the emission limits within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap, where the contribution from the far-end sub-block shall be scaled according to the measurement bandwidth of the near-end sub-block. Exception is f ≥ 10MHz from both adjacent sub blocks on each side of the sub-block gap, where the emission limits within sub-block gaps shall be ‑4 dBm/1 MHz. NOTE 2: For a multi-band RIB with Inter RF Bandwidth gap < 2*Δf_OBUEthe emission limits within the Inter RF Bandwidth gaps is calculated as a cumulative sum of contributions from adjacent sub-blocks or RF Bandwidth on each side of the Inter RF Bandwidth gap, where the contribution from the far-end sub-block or RF Bandwidth shall be scaled according to the measurement bandwidth of the near-end sub-block or RF Bandwidth. NOTE 3: The requirement is not applicable when Δf_max < 10 MHz. NOTE 4: The test requirement is derived from the basic limit a scaling factor of 9 dB and any applicable TT. NOTE 5: Void

6.7.4.5.1.2 Wide Area IAB-DU and Wide Area IAB-MT (Category B)

For IAB-DU and IAB-MT operating in Bands n41, n77, n78, n79 for Category B emissions shall not exceed the maximum levels specified in tables 6.7.4.5.1.2-1 to 6.7.4.5.1.2-3:

Table 6.7.4.5.1.2-1: Wide Area IAB-DU and IAB-MT operating band unwanted emission limits
(1 GHz < NR bands ≤ 3 GHz) for Category B

Frequency offset of measurement filter ‑3dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test requirement (Note 1, 2, 4)	Measurement bandwidth
0 MHz ≤ Δf < 5 MHz	0.05 MHz ≤ f_offset < 5.05 MHz	3.8 dBm-7/5(f_offset/MHz-0.05)dB	100 kHz
5 MHz ≤ Δf < min(10 MHz, Δf_max)	5.05 MHz ≤ f_offset < min(10.05 MHz, f_offset_max)	-3.2 dBm	100 kHz
10 MHz ≤ Δf ≤ Δf_max	10.5 MHz ≤ f_offset < f_offset_max	-6 dBm (3)	1MHz
NOTE 1: For a IAB supporting non-contiguous spectrum operation within any operating band, the emission limits within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap, where the contribution from the far-end sub-block shall be scaled according to the measurement bandwidth of the near-end sub-block. Exception is f ≥ 10MHz from both adjacent sub blocks on each side of the sub-block gap, where the emission limits within sub-block gaps shall be ‑6 dBm/1 MHz. NOTE 2: For a multi-band RIB with Inter RF Bandwidth gap < 2*Δf_OBUEthe emission limits within the Inter RF Bandwidth gaps is calculated as a cumulative sum of contributions from adjacent sub-blocks or RF Bandwidth on each side of the Inter RF Bandwidth gap, where the contribution from the far-end sub-block or RF Bandwidth shall be scaled according to the measurement bandwidth of the near-end sub-block or RF Bandwidth. NOTE 3: The requirement is not applicable when Δf_max < 10 MHz. NOTE 4: The test requirement is derived from the basic limit a scaling factor of 9 dB and any applicable TT.

Table 6.7.4.5.1.2-2: Wide Area IAB-DU and IAB-MT operating band unwanted emission limits
(1 GHz < NR bands ≤ 3 GHz) for Category B

Frequency offset of measurement filter ‑3dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test requirement (Note 1, 2, 4)	Measurement bandwidth
0 MHz ≤ Δf < 5 MHz	0.05 MHz ≤ f_offset < 5.05 MHz	4 dBm-7/5(f_offset/MHz-0.05)dB	100 kHz
5 MHz ≤ Δf < min(10 MHz, Δf_max)	5.05 MHz ≤ f_offset < min(10.05 MHz, f_offset_max)	-3 dBm	100 kHz
10 MHz ≤ Δf ≤ Δf_max	10.5 MHz ≤ f_offset < f_offset_max	-6 dBm (Note 3)	1MHz
NOTE 1: For a IAB supporting non-contiguous spectrum operation within any operating band, the emission limits within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap, where the contribution from the far-end sub-block shall be scaled according to the measurement bandwidth of the near-end sub-block. Exception is f ≥ 10MHz from both adjacent sub blocks on each side of the sub-block gap, where the emission limits within sub-block gaps shall be ‑6 dBm/1 MHz. NOTE 2: For a multi-band RIB with Inter RF Bandwidth gap < 2*Δf_OBUEthe emission limits within the Inter RF Bandwidth gaps is calculated as a cumulative sum of contributions from adjacent sub-blocks or RF Bandwidth on each side of the Inter RF Bandwidth gap, where the contribution from the far-end sub-block or RF Bandwidth shall be scaled according to the measurement bandwidth of the near-end sub-block or RF Bandwidth. NOTE 3: The requirement is not applicable when Δf_max < 10 MHz. NOTE 4: The test requirement is derived from the basic limit a scaling factor of 9 dB and any applicable TT.

Table 6.7.4.5.1.2-2: Wide Area IAB-DU and IAB-MT operating band unwanted emission limits
(4.2 GHz < NR bands ≤ 6 GHz) for Category B

Frequency offset of measurement filter ‑3dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test requirement (Note 1, 2, 4)	Measurement bandwidth
0 MHz ≤ Δf < 5 MHz	0.05 MHz ≤ f_offset < 5.05 MHz	4 dBm-7/5(f_offset/MHz-0.05)dB	100 kHz
5 MHz ≤ Δf < min(10 MHz, Δf_max)	5.05 MHz ≤ f_offset < min(10.05 MHz, f_offset_max)	-3 dBm	100 kHz
10 MHz ≤ Δf ≤ Δf_max	10.5 MHz ≤ f_offset < f_offset_max	-6 dBm (Note 3)	1MHz
NOTE 1: For a IAB supporting non-contiguous spectrum operation within any operating band, the emission limits within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap, where the contribution from the far-end sub-block shall be scaled according to the measurement bandwidth of the near-end sub-block. Exception is f ≥ 10MHz from both adjacent sub blocks on each side of the sub-block gap, where the emission limits within sub-block gaps shall be ‑6 dBm/1 MHz. NOTE 2: For a multi-band RIB with Inter RF Bandwidth gap < 2*Δf_OBUEthe emission limits within the Inter RF Bandwidth gaps is calculated as a cumulative sum of contributions from adjacent sub-blocks or RF Bandwidth on each side of the Inter RF Bandwidth gap, where the contribution from the far-end sub-block or RF Bandwidth shall be scaled according to the measurement bandwidth of the near-end sub-block or RF Bandwidth. NOTE 3: The requirement is not applicable when Δf_max < 10 MHz. NOTE 4: The test requirement is derived from the basic limit a scaling factor of 9 dB and any applicable TT.

6.7.4.6.1 Medium Range IAB-DU (Category A and B)

For Medium Range IAB-DU in NR bands ≤ 3 GHz, emissions shall not exceed the maximum levels specified in tables 6.7.4.6.1-1 and 6.7.4.6.1-4.

For Medium Range IAB-DU in 3GHz <NR bands ≤ 4.2 GHz, emissions shall not exceed the maximum levels specified in tables 6.7.4.6.1-2 and 6.7.4.6.1-5.

For Medium Range IAB-DU in 4.2GHz <NR bands ≤ 6 GHz, emissions shall not exceed the maximum levels specified in tables 6.7.4.6.1-3 and 6.7.4.6.1-6.

For the tables in this clause for IAB-DU type 1-H and IAB-DU type 1-O P_rated,x = P_rated,c,cell – 10*log₁₀(N_{TXU,countedpercell}),

Table 6.7.4.6.1-1: Medium Range IAB-DU operating band unwanted emission limits, 31< P_rated,x ≤ 38 dBm (NR bands ≤ 3 GHz)

Frequency offset of measurement filter ‑3dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test requirement (Note 1, 2, 4)	Measurement bandwidth
0 MHz ≤ Δf < 5 MHz	0.05 MHz ≤ f_offset < 5.05 MHz		100 kHz
5 MHz ≤ Δf < min(10 MHz, Δf_max)	5.05 MHz ≤ f_offset < min(10.05 MHz, f_offset_max)	– 58.2 dB	100 kHz
10 MHz ≤ Δf ≤ Δf_max	10.05 MHz ≤ f_offset < f_offset_max	Min(P_rated,c,TRP– 60 dB, -16 dBm) (Note 3)	100 kHz
NOTE 1: For a IAB supporting non-contiguous spectrum operation within any operating band the emission limits within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap. Exception is f ≥ 10MHz from both adjacent sub blocks on each side of the sub-block gap, where the emission limits within sub-block gaps shall be Min(P_rated,c,TRP– 60 dB, ‑16 dBm)/100kHz. NOTE 2: For a multi-band RIB with Inter RF Bandwidth gap < 2*Δf_OBUEthe emission limits within the Inter RF Bandwidth gaps is calculated as a cumulative sum of contributions from adjacent sub-blocks or RF Bandwidth on each side of the Inter RF Bandwidth gap. NOTE 3: The requirement is not applicable when Δf_max < 10 MHz. NOTE 4: The test requirement is derived from the basic limit a scaling factor of 9 dB and any applicable TT.

Table 6.7.4.6.1-2: Medium Range IAB-DU operating band unwanted emission limits, 31< P_rated,x ≤ 38 dBm (3 GHz < NR bands ≤ 4.2 GHz)

Frequency offset of measurement filter ‑3dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test requirement (Note 1, 2, 4)	Measurement bandwidth
0 MHz ≤ Δf < 5 MHz	0.05 MHz ≤ f_offset < 5.05 MHz		100 kHz
5 MHz ≤ Δf < min(10 MHz, Δf_max)	5.05 MHz ≤ f_offset < min(10.05 MHz, f_offset_max)	P_rated,c,TRP – 58 dB	100 kHz
10 MHz ≤ Δf ≤ Δf_max	10.05 MHz ≤ f_offset < f_offset_max	Min(P_rated,c,TRP – 60 dB, -16 dBm) (Note 3)	100 kHz
NOTE 1: For a IAB supporting non-contiguous spectrum operation within any operating band the emission limits within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap. Exception is f ≥ 10MHz from both adjacent sub blocks on each side of the sub-block gap, where the emission limits within sub-block gaps shall be Min(P_rated,c,TRP– 60 dB, ‑16 dBm)/100kHz. NOTE 2: For a multi-band RIB with Inter RF Bandwidth gap < 2*Δf_OBUEthe emission limits within the Inter RF Bandwidth gaps is calculated as a cumulative sum of contributions from adjacent sub-blocks or RF Bandwidth on each side of the Inter RF Bandwidth gap. NOTE 3: The requirement is not applicable when Δf_max < 10 MHz. NOTE 4: The test requirement is derived from the basic limit a scaling factor of 9 dB and any applicable TT.

Table 6.7.4.6.1-3: Medium Range IAB-DU operating band unwanted emission limits, 31< P_rated,x ≤ 38 dBm (3 GHz < NR bands ≤ 4.2 GHz)

Frequency offset of measurement filter ‑3dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test requirement (Note 1, 2, 4)	Measurement bandwidth
0 MHz ≤ Δf < 5 MHz	0.05 MHz ≤ f_offset < 5.05 MHz		100 kHz
5 MHz ≤ Δf < min(10 MHz, Δf_max)	5.05 MHz ≤ f_offset < min(10.05 MHz, f_offset_max)	P_rated,c,TRP– 58 dB	100 kHz
10 MHz ≤ Δf ≤ Δf_max	10.05 MHz ≤ f_offset < f_offset_max	Min(P_rated,c,TRP– 60 dB, -16 dBm) (Note 3)	100 kHz
NOTE 1: For a IAB supporting non-contiguous spectrum operation within any operating band the emission limits within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap. Exception is f ≥ 10MHz from both adjacent sub blocks on each side of the sub-block gap, where the emission limits within sub-block gaps shall be Min(P_rated,c,TRP– 60 dB, ‑16 dBm)/100kHz. NOTE 2: For a multi-band RIB with Inter RF Bandwidth gap < 2*Δf_OBUEthe emission limits within the Inter RF Bandwidth gaps is calculated as a cumulative sum of contributions from adjacent sub-blocks or RF Bandwidth on each side of the Inter RF Bandwidth gap. NOTE 3: The requirement is not applicable when Δf_max < 10 MHz. NOTE 4: The test requirement is derived from the basic limit a scaling factor of 9 dB and any applicable TT.

Table 6.7.4.6.1-4: Medium Range IAB-DU operating band unwanted emission limits, P_rated,x ≤ 31 dBm (NR bands ≤ 3 GHz)

Frequency offset of measurement filter ‑3dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test requirement (Note 1, 2, 4)	Measurement bandwidth
0 MHz ≤ Δf < 5 MHz	0.05 MHz ≤ f_offset < 5.05 MHz		100 kHz
5 MHz ≤ Δf < min(10 MHz, Δf_max)	5.05 MHz ≤ f_offset < min(10.05 MHz, f_offset_max)	-18.2 dBm	100 kHz
10 MHz ≤ Δf ≤ Δf_max	10.05 MHz ≤ f_offset < f_offset_max	-20 dBm (Note 3)	100 kHz
NOTE 1: For a IAB supporting non-contiguous spectrum operation within any operating band the emission limits within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap. Exception is f ≥ 10MHz from both adjacent sub blocks on each side of the sub-block gap, where the emission limits within sub-block gaps shall be -20 dBm/100kHz. NOTE 2: For a multi-band RIB with Inter RF Bandwidth gap < 2*Δf_OBUEthe emission limits within the Inter RF Bandwidth gaps is calculated as a cumulative sum of contributions from adjacent sub-blocks or RF Bandwidth on each side of the Inter RF Bandwidth gap. NOTE 3: The requirement is not applicable when Δf_max < 10 MHz. NOTE 4: The test requirement is derived from the basic limit a scaling factor of 9 dB and any applicable TT.

Table 6.7.4.6.1-5: Medium Range IAB-DU operating band unwanted emission limits, P_rated,x ≤ 31 dBm (3 GHz < NR bands ≤ 4.2 GHz)

Frequency offset of measurement filter ‑3dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test requirement (Note 1, 2, 4)	Measurement bandwidth
0 MHz ≤ Δf < 5 MHz	0.05 MHz ≤ f_offset < 5.05 MHz		100 kHz
5 MHz ≤ Δf < min(10 MHz, Δf_max)	5.05 MHz ≤ f_offset < min(10.05 MHz, f_offset_max)	-18 dBm	100 kHz
10 MHz ≤ Δf ≤ Δf_max	10.05 MHz ≤ f_offset < f_offset_max	-20 dBm (Note 3)	100 kHz
NOTE 1: For a IAB supporting non-contiguous spectrum operation within any operating band the emission limits within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap. Exception is f ≥ 10MHz from both adjacent sub blocks on each side of the sub-block gap, where the emission limits within sub-block gaps shall be -20 dBm/100kHz. NOTE 2: For a multi-band RIB with Inter RF Bandwidth gap < 2*Δf_OBUEthe emission limits within the Inter RF Bandwidth gaps is calculated as a cumulative sum of contributions from adjacent sub-blocks or RF Bandwidth on each side of the Inter RF Bandwidth gap. NOTE 3: The requirement is not applicable when Δf_max < 10 MHz. NOTE 4: The test requirement is derived from the basic limit a scaling factor of 9 dB and any applicable TT.

Table 6.7.4.6.1-6: Medium Range IAB-DU operating band unwanted emission limits, P_rated,x ≤ 31 dBm (4.2 GHz < NR bands ≤ 6 GHz)

Frequency offset of measurement filter ‑3dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test requirement (Note 1, 2, 4)	Measurement bandwidth
0 MHz ≤ Δf < 5 MHz	0.05 MHz ≤ f_offset < 5.05 MHz		100 kHz
5 MHz ≤ Δf < min(10 MHz, Δf_max)	5.05 MHz ≤ f_offset < min(10.05 MHz, f_offset_max)	-18 dBm	100 kHz
10 MHz ≤ Δf ≤ Δf_max	10.05 MHz ≤ f_offset < f_offset_max	-20 dBm (Note 3)	100 kHz
NOTE 1: For a IAB supporting non-contiguous spectrum operation within any operating band the emission limits within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap. Exception is f ≥ 10MHz from both adjacent sub blocks on each side of the sub-block gap, where the emission limits within sub-block gaps shall be -20 dBm/100kHz. NOTE 2: For a multi-band RIB with Inter RF Bandwidth gap < 2*Δf_OBUEthe emission limits within the Inter RF Bandwidth gaps is calculated as a cumulative sum of contributions from adjacent sub-blocks or RF Bandwidth on each side of the Inter RF Bandwidth gap. NOTE 3: The requirement is not applicable when Δf_max < 10 MHz. NOTE 4: The test requirement is derived from the basic limit a scaling factor of 9 dB and any applicable TT.

6.7.4.6.2 Local Area IAB-DU and Local Area IAB-MT (Category A and B)

For Local Area IAB-DU and Local Area IAB-MT in NR bands ≤ 3 GHz, emissions shall not exceed the maximum levels specified in table 6.7.4.6.2-1.

For Local Area IAB-DU and Local Area IAB-MT in 3 GHz < NR bands ≤ 4.2 GHz, emissions shall not exceed the maximum levels specified in table 6.7.4.6.2-2.

For Local Area IAB-DU and Local Area IAB-MT in 4.2 GHz < NR bands ≤ 6 GHz, emissions shall not exceed the maximum levels specified in table 6.7.4.6.2-3.

Table 6.7.4.6.2-1: Local Area IAB-DU and Local Area IAB-MT operating band unwanted emission limits (NR bands ≤ 3 GHz)

Frequency offset of measurement filter ‑3dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test requirement (Note 1, 2, 4)	Measurement bandwidth
0 MHz ≤ Δf < 5 MHz	0.05 MHz ≤ f_offset < 5.05 MHz		100 kHz
5 MHz ≤ Δf < min(10 MHz, Δf_max)	5.05 MHz ≤ f_offset < min(10.05 MHz, f_offset_max)	-26.2 dBm	100 kHz
10 MHz ≤ Δf ≤ Δf_max	10.05 MHz ≤ f_offset < f_offset_max	-28 dBm (Note 3)	100 kHz
NOTE 1: For a IAB supporting non-contiguous spectrum operation within any operating band the emission limits within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap. Exception is f ≥ 10MHz from both adjacent sub blocks on each side of the sub-block gap, where the emission limits within sub-block gaps shall be -28 dBm/100kHz. NOTE 2: For a multi-band RIB with Inter RF Bandwidth gap < 2*Δf_OBUEthe emission limits within the Inter RF Bandwidth gaps is calculated as a cumulative sum of contributions from adjacent sub-blocks or RF Bandwidth on each side of the Inter RF Bandwidth gap. NOTE 3: The requirement is not applicable when Δf_max < 10 MHz. NOTE 4: The test requirement is derived from the basic limit a scaling factor of 9 dB and any applicable TT. NOTE 5: Void

Table 6.7.4.6.2-2: Local Area IAB-DU and Local Area IAB-MT operating band unwanted emission limits (3 GHz < NR bands ≤ 4.2 GHz)

Frequency offset of measurement filter ‑3dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test requirement (Note 1, 2, 4)	Measurement bandwidth
0 MHz ≤ Δf < 5 MHz	0.05 MHz ≤ f_offset < 5.05 MHz		100 kHz
5 MHz ≤ Δf < min(10 MHz, Δf_max)	5.05 MHz ≤ f_offset < min(10.05 MHz, f_offset_max)	-26 dBm	100 kHz
10 MHz ≤ Δf ≤ Δf_max	10.05 MHz ≤ f_offset < f_offset_max	-28 dBm (Note 3)	100 kHz
NOTE 1: For a IAB supporting non-contiguous spectrum operation within any operating band the emission limits within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap. Exception is f ≥ 10MHz from both adjacent sub blocks on each side of the sub-block gap, where the emission limits within sub-block gaps shall be -28 dBm/100kHz. NOTE 2: For a multi-band RIB with Inter RF Bandwidth gap < 2*Δf_OBUEthe emission limits within the Inter RF Bandwidth gaps is calculated as a cumulative sum of contributions from adjacent sub-blocks or RF Bandwidth on each side of the Inter RF Bandwidth gap. NOTE 3: The requirement is not applicable when Δf_max < 10 MHz. NOTE 4: The test requirement is derived from the basic limit a scaling factor of 9 dB and any applicable TT.

Table 6.7.4.6.2-3: Local Area IAB-DU and Local Area IAB-MT operating band unwanted emission limits (4.2 GHz < NR bands ≤ 6 GHz)

Frequency offset of measurement filter ‑3dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test requirement (Note 1, 2, 4)	Measurement bandwidth
0 MHz ≤ Δf < 5 MHz	0.05 MHz ≤ f_offset < 5.05 MHz		100 kHz
5 MHz ≤ Δf < min(10 MHz, Δf_max)	5.05 MHz ≤ f_offset < min(10.05 MHz, f_offset_max)	-26 dBm	100 kHz
10 MHz ≤ Δf ≤ Δf_max	10.05 MHz ≤ f_offset < f_offset_max	-28 dBm (Note 3)	100 kHz
NOTE 1: For a IAB supporting non-contiguous spectrum operation within any operating band the emission limits within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap. Exception is f ≥ 10MHz from both adjacent sub blocks on each side of the sub-block gap, where the emission limits within sub-block gaps shall be -28 dBm/100kHz. NOTE 2: For a multi-band RIB with Inter RF Bandwidth gap < 2*Δf_OBUEthe emission limits within the Inter RF Bandwidth gaps is calculated as a cumulative sum of contributions from adjacent sub-blocks or RF Bandwidth on each side of the Inter RF Bandwidth gap. NOTE 3: The requirement is not applicable when Δf_max < 10 MHz. NOTE 4: The test requirement is derived from the basic limit a scaling factor of 9 dB and any applicable TT.

6.7.4.6.3 Additional requirements

6.7.4.6.3.1 Limits in FCC Title 47

In addition to the requirements in clauses 6.6.4.2.1, 6.6.4.2.2, 6.6.4.2.3 and 6.6.4.2.4 in TS 38.174 [2], the IAB-DU and IAB-MT may have to comply with the applicable emission limits established by FCC Title 47 [14], when deployed in regions where those limits are applied, and under the conditions declared by the manufacturer.

6.7.4.6.4 IAB type 2-O

The requirements of either clause 6.7.4.6.4.1 (Category A limits) or clause 6.7.4.6.4.1 (Category B limits) shall apply. The application of either Category A or Category B limits shall be the same as for General OTA transmitter spurious emissions requirements (IAB type 2-O) in clause 6.7.5.2.5.2. In addition, the limits in clause 6.7.4.5.2.4 may also apply. The emission measurement result shall not exceed the maximum levels specified in the tables below, where:

– Δf is the separation between the contiguous transmission bandwidth edge frequency and the nominal -3dB point of the measuring filter closest to the contiguous transmission bandwidth edge.

– f_offset is the separation between the contiguous transmission bandwidth edge frequency and the centre of the measuring filter.

– f_offset_max is the offset to the frequency Δf_OBUEoutside the downlink operating band, where Δf_OBUEis defined in table 6.7.1-1.

In addition, inside any sub-block gap for a RIB operating in non-contiguous spectrum, emissions shall not exceed the cumulative sum of the test requirements specified for the adjacent sub blocks on each side of the sub block gap. The test requirement for each sub-block is specified in the clauses 6.7.4.5.2.2 and 6.7.4.5.2.3 below, where in this case:

– Δf is the separation between the sub block edge frequency and the nominal -3 dB point of the measuring filter closest to the sub block edge.

– f_offset is the separation between the sub block edge frequency and the centre of the measuring filter.

– f_offset_max is equal to the sub block gap bandwidth minus half of the bandwidth of the measuring filter.

– Δf_max is equal to f_offset_max minus half of the bandwidth of the measuring filter.

6.7.4.6.4.1 OTA operating band unwanted emission limits (Category A)

The power of unwanted emission of IAB-DU shall not exceed the limits in table 6.7.4.6.4.1-1 or 6.7.4.6.4.1-2. The power of unwanted emission of IAB-MT shall not exceed the limits in table 6.7.4.6.4.1-3 or 6.7.4.6.4.1-4.

Table 6.7.4.6.4.1-1: OBUE limits applicable for IAB-DU in the frequency range 24.25 – 33.4 GHz

Frequency offset of measurement filter -3 dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test limit	Measurement bandwidth
0 MHz ≤ Δf < 0.1*BW_contiguous	0.5 MHz ≤ f_offset < 0.1* BW_contiguous+0.5 MHz	Min(-2.3 dBm, Max(P_rated,t,TRP – 32.3 dB, -9.3 dBm))	1 MHz
0.1*BW_contiguous ≤ Δf < Δf_max	0.1* BW_contiguous+0.5 MHz ≤ f_offset < f_ offset_max	Min(-13 dBm, Max(P_rated,t,TRP – 43 dB, -20 dBm))	1 MHz
NOTE: For non-contiguous spectrum operation within any operating band the limit within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap.

Table 6.7.4.6.4.1-2: OBUE limits applicable for IAB-DU in the frequency range 37 GHz – 52.6 GHz

Frequency offset of measurement filter -3 dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test limit	Measurement bandwidth
0 MHz ≤ Δf < 0.1*BW_contiguous	0.5 MHz ≤ f_offset < 0.1* BW_contiguous+0.5 MHz	Min(-2.3 dBm, Max(P_rated,t,TRP – 30.3 dB, -9.3 dBm))	1 MHz
0.1*BW_contiguous ≤ Δf < Δf_max	0.1* BW_contiguous+0.5 MHz ≤ f_offset < f_ offset_max	Min(-13 dBm, Max(P_rated,t,TRP – 41 dB, -20 dBm))	1 MHz
NOTE: For non-contiguous spectrum operation within any operating band the limit within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap.

Table 6.7.4.6.4.1-3: OBUE limits applicable for IAB-MT in the frequency range 24.25 – 33.4 GHz

Frequency offset of measurement filter -3 dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test limit	Measurement bandwidth
0 MHz ≤ Δf < 0.1*BW_contiguous	0.5 MHz ≤ f_offset < 0.1* BW_contiguous+0.5 MHz	Min(-2.1 dBm, Max(P_rated,t,TRP – 32.1 dB, -9.1 dBm))	1 MHz
0.1*BW_contiguous ≤ Δf < Δf_max	0.1* BW_contiguous+0.5 MHz ≤ f_offset < f_ offset_max	Min(-13 dBm, Max(P_rated,t,TRP – 43 dB, -20 dBm))	1 MHz
NOTE: For non-contiguous spectrum operation within any operating band the limit within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap.

Table 6.7.4.6.4.1-4: OBUE limits applicable for IAB-MT in the frequency range 37 GHz – 52.6 GHz

Frequency offset of measurement filter -3 dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test limit	Measurement bandwidth
0 MHz ≤ Δf < 0.1*BW_contiguous	0.5 MHz ≤ f_offset < 0.1* BW_contiguous+0.5 MHz	Min(-2.0 dBm, Max(P_rated,t,TRP – 30.0 dB, -9.0 dBm))	1 MHz
0.1*BW_contiguous ≤ Δf < Δf_max	0.1* BW_contiguous+0.5 MHz ≤ f_offset < f_ offset_max	Min(-13 dBm, Max(P_rated,t,TRP – 41 dB, -20 dBm))	1 MHz
NOTE: For non-contiguous spectrum operation within any operating band the limit within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap.

6.7.4.6.4.2 OTA operating band unwanted emission limits (Category B)

The power of unwanted emission of IAB-DU shall not exceed the limits in table 6.7.4.6.4.2-1 or 6.7.4.6.4.2-2. The power of unwanted emission of IAB-MT shall not exceed the limits in table 6.7.4.6.4.2-3 or 6.7.4.6.4.2-4.

Table 6.7.4.6.4.2-1: OBUE limits applicable for IAB-DU in the frequency range 24.25 – 33.4 GHz

Frequency offset of measurement filter -3 dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test limit	Measurement bandwidth
0 MHz ≤ Δf < 0.1*BW_contiguous	0.5 MHz ≤ f_offset < 0.1* BW_contiguous+0.5 MHz	Min(-2.3 dBm, Max(P_rated,t,TRP – 32.3 dB, -9.3 dBm))	1 MHz
0.1*BW_contiguous ≤ Δf < Δf_B	0.1* BW_contiguous+0.5 MHz ≤ f_offset < Δf_B+0.5 MHz	Min(-13 dBm, Max(P_rated,t,TRP – 43 dB, -20 dBm))	1 MHz
Δf_B ≤ Δf < Δf_max	Δf_B+5 MHz ≤ f_offset < f_ offset_max	Min(-5 dBm, Max(P_rated,t,TRP – 33 dB, -10 dBm))	10 MHz
NOTE 1: For non-contiguous spectrum operation within any operating band the limit within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap. NOTE 2: Δf_B = 2*BW_contiguouswhen BW_contiguous≤ 500 MHz, otherwise Δf_B = BW_contiguous+ 500 MHz.

Table 6.7.4.6.4.2-2: OBUE limits applicable for IAB-DU in the frequency range 37 – 52.6 GHz

Frequency offset of measurement filter -3 dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test limit	Measurement bandwidth
0 MHz ≤ Δf < 0.1*BW_contiguous	0.5 MHz ≤ f_offset < 0.1* BW_contiguous+0.5 MHz	Min(-2.3 dBm, Max(P_rated,t,TRP – 30.3 dB, -9.3 dBm))	1 MHz
0.1*BW_contiguous ≤ Δf < Δf_B	0.1* BW_contiguous+0.5 MHz ≤ f_offset < Δf_B+0.5 MHz	Min(-13 dBm, Max(P_rated,t,TRP – 41 dB, -20 dBm))	1 MHz
Δf_B ≤ Δf < Δf_max	Δf_B+5 MHz ≤ f_offset < f_ offset_max	Min(-5 dBm, Max(P_rated,t,TRP – 31 dB, -10 dBm))	10 MHz
NOTE 1: For non-contiguous spectrum operation within any operating band the limit within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap. NOTE 2: Δf_B = 2*BW_contiguouswhen BW_contiguous≤ 500 MHz, otherwise Δf_B = BW_contiguous+ 500 MHz.

Table 6.7.4.6.4.2-3: OBUE limits applicable for IAB-MT in the frequency range 24.25 – 33.4 GHz

Frequency offset of measurement filter -3 dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test limit	Measurement bandwidth
0 MHz ≤ Δf < 0.1*BW_contiguous	0.5 MHz ≤ f_offset < 0.1* BW_contiguous+0.5 MHz	Min(-2.1 dBm, Max(P_rated,t,TRP – 32.1 dB, -9.1 dBm))	1 MHz
0.1*BW_contiguous ≤ Δf < Δf_B	0.1* BW_contiguous+0.5 MHz ≤ f_offset < Δf_B+0.5 MHz	Min(-13 dBm, Max(P_rated,t,TRP – 43 dB, -20 dBm))	1 MHz
Δf_B ≤ Δf < Δf_max	Δf_B+5 MHz ≤ f_offset < f_ offset_max	Min(-5 dBm, Max(P_rated,t,TRP – 33 dB, -10 dBm))	10 MHz
NOTE 1: For non-contiguous spectrum operation within any operating band the limit within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap. NOTE 2: Δf_B = 2*BW_contiguouswhen BW_contiguous≤ 500 MHz, otherwise Δf_B = BW_contiguous+ 500 MHz.

Table 6.7.4.6.4.2-4: OBUE limits applicable for IAB- MT in the frequency range 37 – 52.6 GHz

Frequency offset of measurement filter -3 dB point, Δf	Frequency offset of measurement filter centre frequency, f_offset	Test limit	Measurement bandwidth
0 MHz ≤ Δf < 0.1*BW_contiguous	0.5 MHz ≤ f_offset < 0.1* BW_contiguous+0.5 MHz	Min(-2.0 dBm, Max(P_rated,t,TRP – 30.0 dB, -9.0 dBm))	1 MHz
0.1*BW_contiguous ≤ Δf < Δf_B	0.1* BW_contiguous+0.5 MHz ≤ f_offset < Δf_B+0.5 MHz	Min(-13 dBm, Max(P_rated,t,TRP – 41 dB, -20 dBm))	1 MHz
Δf_B ≤ Δf < Δf_max	Δf_B+5 MHz ≤ f_offset < f_ offset_max	Min(-5 dBm, Max(P_rated,t,TRP – 31 dB, -10 dBm))	10 MHz
NOTE 1: For non-contiguous spectrum operation within any operating band the limit within sub-block gaps is calculated as a cumulative sum of contributions from adjacent sub blocks on each side of the sub block gap. NOTE 2: Δf_B = 2*BW_contiguouswhen BW_contiguous≤ 500 MHz, otherwise Δf_B = BW_contiguous+ 500 MHz.

6.7.4.6.4.3 Additional OTA operating band unwanted emission limits

6.7.4.6.4.3.1 Protection of Earth Exploration Satellite Service

For IAB-Node operating in the frequency range 24.25 – 27.5 GHz, the power of unwanted emission shall not exceed the limits in table 6.7.4.6.4.3.1-1.

Table 6.7.4.6.4.3.1-1: OBUE limits for protection of Earth Exploration Satellite Service

Frequency range	Measurement filter centre frequency range	Limit	Measurement Bandwidth
23.6 – 24 GHz	23.7 – 23.9 GHz	-3 dBm (Note 1)	200 MHz
23.6 – 24 GHz	23.7 – 23.9 GHz	-9 dBm (Note 2)	200 MHz
NOTE 1: This limit applies to IAB-DU and IAB-MT brought into use on or before 1 September 2027. NOTE 2: This limit applies to IAB-DU and IAB-MT brought into use after 1 September 2027.

6.7.5 OTA transmitter spurious emissions

6.7.5.1 General

For IAB-DU, the OTA transmitter spurious emission limits for FR1 shall apply from 30 MHz to 12.75 GHz, excluding the frequency range from Δf_OBUE below the lowest frequency of each supported downlink operating band, up to Δf_OBUE above the highest frequency of each supported downlink operating band, where the Δf_OBUE is defined in table 9.7.1-1. For some FR1 operating bands, the upper limit is higher than 12.75 GHz in order to comply with the 5^th harmonic limit of the downlink operating band, as specified in Recommendation ITU-R SM.329 [10].

For IAB-MT, the OTA transmitter spurious emission limits for FR1 shall apply from 30 MHz to 12.75 GHz, excluding the frequency range from Δf_OBUE below the lowest frequency of each supported uplink operating band, up to Δf_OBUE above the highest frequency of each supported uplink operating band, where the Δf_OBUE is defined in table 9.7.1-2. For some FR1 operating bands, the upper limit is higher than 12.75 GHz in order to comply with the 5^th harmonic limit of the uplink operating band, as specified in Recommendation ITU-R SM.329 [10].

For multi-band RIB each supported operating band and Δf_OBUE MHz around each band are excluded from the OTA transmitter spurious emissions requirements.

The requirements shall apply whatever the type of transmitter considered (single carrier or multi-carrier). It applies for all transmission modes foreseen by the manufacturer’s specification.

IAB-DU type 1-O and IAB-MT type 1-O requirements consist of OTA transmitter spurious emission requirements based on TRP and co-location requirements not based on TRP.

6.7.5.2 General OTA transmitter spurious emissions requirements

6.7.5.2.1 Definition and applicability

The general OTA transmitter spurious emissions requirements are specified as TRP per RIB, per cell, unless otherwise specified.

6.7.5.2.2 Minimum requirement

The minimum requirement for IAB type 1-O is specified in TS 38.174 [2], clause 9.7.5.2.

The minimum requirement for IAB type 2-O is specified in TS 38.174 [2], clause 9.7.5.3.

6.7.5.2.3 Test purpose

The test purpose is to verify if the radiated spurious emissions from the IAB at the RIB are within the specified minimum requirements.

6.7.5.2.4 Method of test

6.7.5.2.4.1 Initial conditions

Test environment: Normal; see annex B.2.

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

– For FR1:

– B when testing from 30 MHz to F_{DL_low} – Δf_OBUEfor IAB-DU or F_{UL_low} – Δf_OBUEfor IAB-MT

– T when testing from F_{DL_high} + Δf_OBUE for IAB-DU or F_{UL_high} + Δf_OBUEfor IAB-MT to 12.75 GHz (or to 5^th harmonic)

– For FR2:

– B when testing from 30 MHz to F_{DL_low} – Δf_OBUEfor IAB-DU or F_{UL_low} – Δf_OBUEfor IAB-MT

– T when testing from F_{DL_high} + Δf_OBUEfor IAB-DU or F_{UL_high} + Δf_OBUEfor IAB-MT to 2^nd harmonic (or to 60 GHz)

RF bandwidth positions to be tested in single-band multi-carrier operation, see clause 4.9.1:

– For FR1:

– B_RFBW when testing from 30 MHz to F_{DL_low} – Δf_OBUEfor IAB-DU or F_{UL_low} – Δf_OBUEfor IAB-MT

– T_RFBW when testing from F_{DL_high} + Δf_OBUEfor IAB-DU or F_{UL_high} + Δf_OBUEfor IAB-MT to 12.75 GHz (or 5^th harmonic)

– For FR2:

– B_RFBW when testing from 30 MHz to F_{DL_low} – Δf_OBUEfor IAB-DU or F_{UL_low} – Δf_OBUEfor IAB-MT

– T_RFBW when testing from F_{DL_high} + Δf_OBUEfor IAB-DU or F_{UL_high} + Δf_OBUEfor IAB-MT to 2^nd harmonic (or to 60 GHz)

RF bandwidth positions to be tested in multi-band multi-carrier operation, see clause 4.9.1:

– For FR1:

– B_RFBW_T’_RFBW when testing from 30 MHz to F_{DL_Blow_low} – Δf_OBUEfor IAB-DU or F_{UL_Blow_low} – Δf_OBUEfor IAB-M

– B’_RFBW_T_RFBW when testing from F_{DL_Bhigh_high} + Δf_OBUE for IAB-DU or F_{UL_Bhigh_high} + Δf_OBUEfor IAB-MT to 12.75 GHz (or to 5^th harmonic)

– B_RFBW_T’_RFBW and B’_RFBW_T_RFBW when testing from F_{DL_Blow_high} + Δf_OBUE to F_{DL_Bhigh_low} – Δf_OBUE for IAB-DU or F_{UL_Blow_high} + Δf_OBUE to F_{UL_Bhigh_low} – Δf_OBUEfor IAB-MT

Directions to be tested: As the requirement is TRP the beam pattern(s) may be set up to optimise the TRP measurement procedure (see annex I) as long as the required TRP level is achieved.

6.7.5.2.4.2 Procedure

The following procedure for measuring TRP is based on directional power measurements as described in annex I. An alternative method to measure TRP is to use a characterized and calibrated reverberation chamber if so follow steps 1, 3, 4, 5, 7 and 10.

1) Place the IAB-Node at the positioner.

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

3) Measurements shall use a measurement bandwidth in accordance to the conditions in clause 6.7.5.2.5.

4) The measurement device characteristics shall be:

– Detection mode: True RMS.

5) Set the IAB to transmit:

– For RIB declared to be capable of single carrier operation only, set the RIB to transmit a signal according to the applicable test configuration in clause 4.8 using the corresponding test model in clause 4.9.2 (i.e.IAB-DU-FR1-TM1.1 for IAB-DU type 1-O, IAB-MT-FR1-TM1.1 for IAB-MT type 1-O, IAB-DU-FR2-TM1.1 for IAB-DU type 2-O or IAB-MT-FR2-TM1.1 for IAB-MT type 2-O), at manufacturer’s declared rated output power P_rated,c,TRP.

– For a RIB declared to be capable of multi-carrier and/or CA operation, set the RIB to transmit according to the corresponding test model in clause 4.9.2 on all carriers configured using the applicable test configuration and corresponding power setting specified in clause 4.7.2 and 4.8.

– For an IAB node declared to be capable of Simultaneous transmission between IAB-DU and IAB-MT (D.IAB-3), using the corresponding test model(s) in clause 4.9.2 for IAB-MT and IAB-DU using the applicable test configuration and corresponding power setting specified in clause 4.7.2 and 4.8.

6) Orient the positioner (and IAB) in order that the direction to be tested aligns with the test antenna such that measurements to determine TRP can be performed (see annex I).

7) Measure the emission at the specified frequencies with specified measurement bandwidth.

8) Repeat step 6-7 for all directions in the appropriated TRP measurement grid needed for full TRP estimation (see annex I).

NOTE 1: The TRP measurement grid may not be the same for all measurement frequencies.

NOTE 2: The frequency sweep or the TRP measurement grid sweep may be done in any order.

9) Calculate TRP at each specified frequency using the directional measurements.

In addition, for multi-band RIB(s), the following steps shall apply:

10) For IAB type 1-O and multi-band RIBs 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.

6.7.5.2.5 Test requirement

6.7.5.2.5.1 Test requirement for IAB type 1-O

For a IAB meeting category A the TRP of any spurious emission shall not exceed the limits in table 6.7.5.2.5.1-1.

Table 6.7.5.2.5.1-1: General IAB-DU and IAB-MT transmitter spurious emission limits in FR1 (Category A)

Spurious frequency range	Test limit	Measurement bandwidth	Notes
30 MHz – 1 GHz	-13 + X dBm	100 kHz	Note 1, Note 6
1 GHz – 12.75 GHz		1 MHz	Note 1, Note 2, Note 6
12.75 GHz – 5^th harmonic of the upper frequency edge of the DL operating band in GHz		1 MHz	Note 1, Note 2, Note 3, Note 6
NOTE 1: Measurement bandwidths as in ITU-R SM.329 [10], s4.1. NOTE 2: Upper frequency as in ITU-R SM.329 [10], 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: Void. NOTE 5: Void. NOTE 6: X = 9 dB, unless stated differently in regional regulation.

For a IAB meeting category B the TRP of any spurious emission shall not exceed the limits in table 6.7.5.2.5.1-2.

Table 6.7.5.2.5.1-2: General IAB-DU and IAB-MT transmitter spurious emission limits in FR1 (Category B)

Spurious frequency range	Test limit	Measurement bandwidth	Notes
30 MHz – 1 GHz	-36 + X dBm	100 kHz	Note 1, Note 5
1 GHz – 12.75 GHz	-30 + X dBm	1 MHz	Note 1, Note 2, Note 5
12.75 GHz – 5^th harmonic of the upper frequency edge of the DL operating band in GHz		1 MHz	Note 1, Note 2, Note 3, Note 5
NOTE 1: Measurement bandwidths as in ITU-R SM.329 [10], s4.1. NOTE 2: Upper frequency as in ITU-R SM.329 [105], 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 12.75GHz. NOTE 4: Void. NOTE 5: X = 9 dB, unless stated differently in regional regulation.

6.7.5.2.5.2 Test requirement for IAB type 2-O

6.7.5.2.5.2.1 General

The requirements of either clause 6.7.5.2.5.2.2 (Category A limits) or clause 6.7.5.2.5.2.3 (Category B limits) shall apply. The application of either Category A or Category B limits shall be the same as for Operating band unwanted emissions in clause 6.7.1.

6.7.5.2.5.2.2 OTA transmitter spurious emissions (Category A)

The power of any spurious emission shall not exceed the limits in table 6.7.5.2.5.2.2-1.

Table 6.7.5.2.5.2.2-1: General IAB-DU and IAB-MT transmitter spurious emission limits in FR2 (Category A)

Spurious frequency range	Test limit	Measurement bandwidth	Notes
30 MHz – 1 GHz	-13 dBm	100 kHz	Note 1
1 GHz – min(2^nd harmonic of the upper frequency edge of the DL operating band in GHz; 60 GHz)		1 MHz	Note 1, Note 2
NOTE 1: Measurement bandwidth as in ITU-R SM.329 [10], s4.1. NOTE 2: Upper frequency as in ITU-R SM.329 [10], s2.5 table 1.

6.7.5.2.5.2.3 OTA transmitter spurious emissions (Category B)

The power of any spurious emission shall not exceed the limits in table 6.7.5.2.5.2.3-1.

Table 6.7.5.2.5.2.3-1: IAB-DU and IAB-MT radiated Tx spurious emission limits in FR2 (Category B)

Frequency range (Note 4)	Test limit	Measurement Bandwidth	Note
30 MHz ↔ 1 GHz	-36 dBm	100 kHz	Note 1
1 GHz ↔ 18 GHz	-30 dBm	1 MHz	Note 1
18 GHz ↔ F_step,1	-20 dBm	10 MHz	Note 2
F_step,1↔ F_step,2	-15 dBm	10 MHz	Note 2
F_step,2 ↔ F_step,3	-10 dBm	10 MHz	Note 2
F_step,4↔ F_step,5	-10 dBm	10 MHz	Note 2
F_step,5↔ F_step,6	-15 dBm	10 MHz	Note 2
F_step,6 ↔ min(2nd harmonic of the upper frequency edge of the DL operating band in GHz; 60 GHz)	-20 dBm	10 MHz	Note 2, Note 3
NOTE 1: Bandwidth as in ITU-R SM.329 [10], s4.1 NOTE 2: Limit and bandwidth as in ERC Recommendation 74-01 [11], annex 2. NOTE 3: Upper frequency as in ITU-R SM.329 [10], s2.5 table 1. NOTE 4: The step frequencies F_step,X are defined in table 6.7.5.2.5.2.3-2.

Table 6.7.5.2.5.2.3-2: Step frequencies for defining the IAB-DU and IAB-MT radiated Tx spurious emission limits in FR2 (Category B)

Operating band	F_step,1 (GHz)	F_step,2 (GHz)	F_step,3 (GHz) (Note 2)	F_step,4 (GHz) (Note 2)	F_step,5 (GHz)	F_step,6 (GHz)
n257	18	23.5	25	31	32.5	41.5
n258	18	21	22.75	29	30.75	40.5
n259	23.5	35.5	38	45	47.5	59.5
NOTE 1: F_step,X are based on ERC Recommendation 74-01 [11], annex 2. NOTE 2: F_step,3 and F_step,4 are aligned with the values for Δf_OBUE in table 6.7.1-1.

6.7.5.3 Void

6.7.5.4 Additional spurious emissions requirements

6.7.5.4.1 Definition and applicability

These requirements may be applied for the protection of systems operating in frequency ranges other than the IAB downlink operating band. The limits may apply as an optional protection of such systems that are deployed in the same geographical area as the IAB-Node, or they may be set by local or regional regulation as a mandatory requirement for an NR operating band. It is in some cases not stated in the present document whether a requirement is mandatory or under what exact circumstances that a limit applies, since this is set by local or regional regulation. An overview of regional requirements in the present document is given in clause 4.4.

Some requirements may apply for the protection of specific equipment (UE, MS and/or BS) or equipment operating in specific systems (GSM, CDMA, UTRA, E-UTRA, NR, etc.).

The requirement shall apply at each RIB supporting transmission in the operating band.

All additional spurious requirements are TRP unless otherwise stated.

6.7.5.4.2 Minimum Requirement

The minimum requirement for IAB type 1-O is specified in TS 38.174 [2], clause 9.7.5.2.3.

The minimum requirement for IAB type 2-O is specified in TS 38.174 [2], clause 9.7.5.3.3.

6.7.5.4.3 Test purpose

The test purpose is to verify the radiated spurious emissions from the IAB at the RIB are within the specified additional spurious emissions requirements.

6.7.5.4.4 Method of test

6.7.5.4.4.1 Initial conditions

Test environment: Normal; see annex B.2.

RF channels to be tested for single carrier:

– For FR1:

– B when testing from 30 MHz to F_{DL_low} – Δf_OBUEfor IAB-DU or F_{UL_low} – Δf_OBUEfor IAB-MT

– T when testing from F_{DL_high} + Δf_OBUE for IAB-DU or F_{UL_high} + Δf_OBUEfor IAB-MT to 12.75 GHz (or to 5^th harmonic)

– For FR2:

– B when testing from 30 MHz to F_{DL_low} – Δf_OBUEfor IAB-DU or F_{UL_low} – Δf_OBUEfor IAB-MT

– T when testing from F_{DL_high} + Δf_OBUE for IAB-DU or F_{UL_high} + Δf_OBUEfor IAB-MT to 60 GHz (or to 2^nd harmonic)

RF bandwidth positions to be tested in single-band multi-carrier operation:

– For FR1:

– B_RFBW when testing from 30 MHz to F_{DL_low} – Δf_OBUEfor IAB-DU or F_{UL_low} – Δf_OBUEfor IAB-MT

– T_RFBW when testing from F_{DL_high} + Δf_OBUE for IAB-DU or F_{UL_high} + Δf_OBUEfor IAB-MT to 12.75 GHz (or to 5^th harmonic)

– For FR2:

– B_RFBW when testing from 30 MHz to F_{DL_low} – Δf_OBUEfor IAB-DU or F_{UL_low} – Δf_OBUEfor IAB-MT

– T_RFBW when testing from F_{DL_high} + Δf_OBUE for IAB-DU or F_{UL_high} + Δf_OBUEfor IAB-MT to 60 GHz (or to 2^nd harmonic)

RF bandwidth positions to be tested in multi-band multi-carrier operation:

– For FR1:

– B_RFBW_T’_RFBW when testing from 30 MHz to F_{DL_Blow_low} – Δf_OBUE for IAB-DU or F_{UL_low} – Δf_OBUEfor IAB-MT

– B’_RFBW_T_RFBW when testing from F_{DL_Bhigh_high} + Δf_OBUE for IAB-DU or F_{UL_Bhigh_high} + Δf_OBUEfor IAB-MT to 12.75 GHz (or to 5^th harmonic)

Directions to be tested: As the requirements are TRP the beam pattern(s) may be set up to optimise the TRP measurement procedure (see annex I) as long as the required TRP level is achieved.

6.7.5.4.4.2 Procedure

1) Place the IAB-Node at the positioner.

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

3) Measurements shall use a measurement bandwidth in accordance to the conditions in clause 6.7.5.4.5.

4) The measurement device characteristics shall be:

– Detection mode: True RMS.

5) Set the IAB-Node to transmit:

– For RIB declared to be capable of single carrier operation only, set the RIB to transmit a signal according to the applicable test configuration in clause 4.8 using the corresponding test model in clause 4.9.2 (IAB-DU-FR1-TM1.1 for IAB-DU type 1-O, IAB-MT-FR1-TM1.1 for IAB-MT type 1-O, IAB-DU-FR2-TM1.1 for IAB-DU type 2-O or IAB-MT-FR2-TM1.1 for IAB-MT type 2-O), at manufacturer’s declared rated output power P_rated,c,TRP.

– For a RIB declared to be capable of multi-carrier and/or CA operation, set the RIB to transmit according to IAB-DU-FR1-TM1.1 for IAB-DU type 1-O, IAB-MT-FR1-TM1.1 for IAB-MT type 1-O, IAB-DU-FR2-TM1.1 for IAB-DU type 2-O or IAB-MT-FR2-TM1.1 for IAB-MT type 2-O in clause 4.9.2 on all carriers configured using the applicable test configuration and corresponding power setting specified in clause 4.7.2 and 4.8.

– For an IAB node declared to be capable of Simultaneous transmission between IAB-DU and IAB-MT (D.IAB-3), set the RIB to transmit according to IAB-DU-FR1-TM1.1 for IAB-DU type 1-O, IAB-MT-FR1-TM1.1 for IAB-MT type 1-O, IAB-DU-FR2-TM1.1 for IAB-DU type 2-O or IAB-MT-FR2-TM1.1 for IAB-MT type 2-O in clause 4.9.2 using the applicable test configuration and corresponding power setting specified in clause 4.7.2 and 4.8.

6) Orient the positioner (and IAB) in order that the direction to be tested aligns with the test antenna such that measurements to determine TRP can be performed (see annex I).

7) Measure the emission at the specified frequencies with specified measurement bandwidth.

8) Repeat step 6-7 for all directions in the appropriated TRP measurement grid needed for full TRP estimation (see annex I).

NOTE 1: The TRP measurement grid may not be the same for all measurement frequencies.

NOTE 2: The frequency sweep or the TRP measurement grid sweep may be done in any order.

9) Calculate TRP at each specified frequency using the directional measurements.

In addition, for multi-band RIB(s), the following steps shall apply:

10) For multi-band RIBs 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.

6.7.5.4.5 Test requirement

6.7.5.4.5.1 Test requirement for IAB type 1-O

The power of any spurious emission shall not exceed the test limits in table 6.7.5.4.5-1 for a IAB where requirements for co-existence with the system listed in the first column apply. For a multi-band RIB, the exclusions and conditions in the Note column of table 6.7.5.4.5-1 apply for each supported operating band.

Table 6.7.5.4.5.1-1: IAB-DU and IAB-MT spurious emissions basic limits for co-existence with systems operating in other frequency bands

System type to co-exist with	Frequency range for co-existence requirement	Test limits	Measurement bandwidth	Note
GSM900	921 – 960 MHz	-45.4 dBm	100 kHz
	876 – 915 MHz	-49.4 dBm	100 kHz
DCS1800	1805 – 1880 MHz	-35.4 dBm	100 kHz
	1710 – 1785 MHz	-49.4 dBm	100 kHz
PCS1900	1930 – 1990 MHz	-35.4 dBm	100 kHz
	1850 – 1910 MHz	-49.4 dBm	100 kHz
GSM850 or	869 – 894 MHz	-45.4 dBm	100 kHz
CDMA850	824 – 849 MHz	-49.4 dBm	100 kHz
UTRA FDD	2110 – 2170 MHz	-40.4 dBm	1 MHz
Band I or E-UTRA Band 1 or NR Band n1	1920 – 1980 MHz	-37.4 dBm	1 MHz
UTRA FDD	1930 – 1990 MHz	-40.4 dBm	1 MHz
Band II or E-UTRA Band 2 or NR Band n2	1850 – 1910 MHz	-37.4 dBm	1 MHz
UTRA FDD	1805 – 1880 MHz	-40.4 dBm	1 MHz
Band III or E-UTRA Band 3 or NR Band n3	1710 – 1785 MHz	-37.4 dBm	1 MHz
UTRA FDD Band IV or E-UTRA Band 4	2110 – 2155 MHz	-40.4 dBm	1 MHz
	1710 – 1755 MHz	-37.4 dBm	1 MHz
UTRA FDD Band V or E-UTRA Band 5 or NR Band n5	869 – 894 MHz	-40.4 dBm	1 MHz
	824 – 849 MHz	-37.4 dBm	1 MHz
UTRA FDD	860 – 890 MHz	-40.4 dBm	1 MHz
Band VI, XIX or	815 – 830 MHz	-37.4 dBm	1 MHz
E-UTRA Band 6, 18, 19 or NR Band n18	830 – 845 MHz	-37.4 dBm	1 MHz
UTRA FDD Band VII or E-UTRA Band 7 or NR Band n7	2620 – 2690 MHz	-40.4 dBm	1 MHz
	2500 – 2570 MHz	-37.4 dBm	1 MHz
UTRA FDD Band VIII or E-UTRA Band 8 or NR Band n8	925 – 960 MHz	-40.4 dBm	1 MHz
	880 – 915 MHz	-37.4 dBm	1 MHz
UTRA FDD Band IX or E-UTRA Band 9	1844.9 – 1879.9 MHz	-40.4 dBm	1 MHz
	1749.9 – 1784.9 MHz	-37.4 dBm	1 MHz
UTRA FDD Band X or E-UTRA Band 10	2110 – 2170 MHz	-40.4 dBm	1 MHz
	1710 – 1770 MHz	-37.4 dBm	1 MHz
UTRA FDD Band XI or XXI or E-UTRA Band 11 or 21	1475.9 – 1510.9 MHz	-40.4 dBm	1 MHz
	1427.9 – 1447.9 MHz	-37.4 dBm	1 MHz
	1447.9 – 1462.9 MHz	-37.4 dBm	1 MHz
UTRA FDD Band XII or E-UTRA Band 12 or NR Band n12	729 – 746 MHz	-40.4 dBm	1 MHz
	699 – 716 MHz	-37.4 dBm	1 MHz
UTRA FDD Band XIII or E-UTRA Band 13	746 – 756 MHz	-40.4 dBm	1 MHz
	777 – 787 MHz	-37.4 dBm	1 MHz
UTRA FDD Band XIV or E-UTRA Band 14 or NR band n14	758 – 768 MHz	-40.4 dBm	1 MHz
	788 – 798 MHz	-37.4 dBm	1 MHz
E-UTRA Band 17	734 – 746 MHz	-40.4 dBm	1 MHz
	704 – 716 MHz	-37.4 dBm	1 MHz
UTRA FDD Band XX or E-UTRA Band 20 or NR Band n20	791 – 821 MHz	-40.4 dBm	1 MHz
	832 – 862 MHz	-37.4 dBm	1 MHz
UTRA FDD Band XXII or E-UTRA Band 22	3510 – 3590 MHz	-40 dBm	1 MHz	This requirement does not apply to IAB-DU and IAB-MT operating in band n77 or n78.
	3410 – 3490 MHz	-37 dBm	1 MHz	This requirement does not apply to IAB-DU and IAB-MT operating in band n77 or n78.
E-UTRA Band 24	1525 – 1559 MHz	-40.4 dBm	1 MHz
	1626.5 – 1660.5 MHz	-37.4 dBm	1 MHz
UTRA FDD Band XXV or E-UTRA Band 25 or NR band n25	1930 – 1995 MHz	-40.4 dBm	1 MHz
	1850 – 1915 MHz	-37.4 dBm	1 MHz
UTRA FDD Band XXVI or E-UTRA Band 26 or NR Band n26	859 – 894 MHz	-40.4 dBm	1 MHz
	814 – 849 MHz	-37.4 dBm	1 MHz
E-UTRA Band 27	852 – 869 MHz	-40.4 dBm	1 MHz
	807 – 824 MHz	-37.4 dBm	1 MHz
E-UTRA Band 28 or NR Band n28	758 – 803 MHz	-40.4 dBm	1 MHz
	703 – 748 MHz	-37.4 dBm	1 MHz
E-UTRA Band 29 or NR Band n29	717 – 728 MHz	-40.4 dBm	1 MHz
E-UTRA Band 30 or NR Band n30	2350 – 2360 MHz	-40.4 dBm	1 MHz
	2305 – 2315 MHz	-37.4 dBm	1 MHz
E-UTRA Band 31	462.5 – 467.5 MHz	-40.4 dBm	1 MHz
	452.5 – 457.5 MHz	-37.4 dBm	1 MHz
UTRA FDD band XXXII or E-UTRA band 32	1452 – 1496 MHz	-40.4 dBm	1 MHz
UTRA TDD Band a) or E-UTRA Band 33	1900 – 1920 MHz	-40.4 dBm	1 MHz
UTRA TDD Band a) or E-UTRA Band 34 or NR band n34	2010 – 2025 MHz	-40.4 dBm	1 MHz
UTRA TDD Band b) or E-UTRA Band 35	1850 – 1910 MHz	-40.4 dBm	1 MHz
UTRA TDD Band b) or E-UTRA Band 36	1930 – 1990 MHz	-40.4 dBm	1 MHz
UTRA TDD Band c) or E-UTRA Band 37	1910 – 1930 MHz	-40.4 dBm	1 MHz
UTRA TDD Band d) or E-UTRA Band 38 or NR Band n38	2570 – 2620 MHz	-40.4 dBm	1 MHz
UTRA TDD Band f) or E-UTRA Band 39 or NR band n39	1880 – 1920MHz	-40.4 dBm	1 MHz
UTRA TDD Band e) or E-UTRA Band 40 or NR Band n40	2300 – 2400MHz	-40.4 dBm	1 MHz
E-UTRA Band 41 or NR Band n41, n90	2496 – 2690 MHz	-40.4 dBm	1 MHz	This is not applicable IAB-DU and IAB-MT operating in Band n41.
E-UTRA Band 42	3400 – 3600 MHz	-40 dBm	1 MHz	This is not applicable to IAB-DU and IAB-MT operating in Band n77 or n78.
E-UTRA Band 43	3600 – 3800 MHz	-40 dBm	1 MHz	This is not applicable to IAB-DU and IAB-MT operating in Band n77 or n78.
E-UTRA Band 44	703 – 803 MHz	-40.4 dBm	1 MHz
E-UTRA Band 45	1447 – 1467 MHz	-40.4 dBm	1 MHz
E-UTRA Band 46 or NR Band n46	5150 – 5925 MHz	-39.5 dBm	1 MHz
E-UTRA Band 47	5855 – 5925 MHz	-39.5 dBm	1 MHz
E-UTRA Band 48 or NR Band n48	3550 – 3700 MHz	-40 dBm	1 MHz	This is not applicable to IAB-DU and IAB-MT operating in Band n77 or n78.
E-UTRA Band 50 or NR band n50	1432 – 1517 MHz	-40.4 dBm	1 MHz
E-UTRA Band 51 or NR Band n51	1427 – 1432 MHz	-40.4 dBm	1 MHz
E-UTRA Band 53 or NR Band n53	2483.5 – 2495 MHz	-40.4 dBm	1 MHz	This is not applicable to IAB-DU and IAB-MT operating in Band n41.
E-UTRA Band 65 or NR Band n65	2110 – 2200 MHz	-40.4 dBm	1 MHz
	1920 – 2010 MHz	-37.4 dBm	1 MHz
E-UTRA Band 66 or NR Band n66	2110 – 2200 MHz	-40.4 dBm	1 MHz
	1710 – 1780 MHz	-37.4 dBm	1 MHz
E-UTRA Band 67	738 – 758 MHz	-40.4 dBm	1 MHz
E-UTRA Band 68	753 -783 MHz	-40.4 dBm	1 MHz
	698-728 MHz	-37.4 dBm	1 MHz
E-UTRA Band 69	2570 – 2620 MHz	-40.4 dBm	1 MHz
E-UTRA Band 70 or NR Band n70	1995 – 2020 MHz	-40.4 dBm	1 MHz
	1695 – 1710 MHz	-37.4 dBm	1 MHz
E-UTRA Band 71 or NR Band n71	617 – 652 MHz	-40.4 dBm	1 MHz
	663 – 698 MHz	-37.4 dBm	1 MHz
E-UTRA Band 72	461 – 466 MHz	-40.4 dBm	1 MHz
	451 – 456 MHz	-37.4 dBm	1 MHz
E-UTRA Band 74 or NR Band n74	1475 – 1518 MHz	-40.4 dBm	1 MHz
	1427 – 1470 MHz	-37.4 dBm	1MHz
E-UTRA Band 75 or NR Band n75	1432 – 1517 MHz	-40.4 dBm	1 MHz
E-UTRA Band 76 or NR Band n76	1427 – 1432 MHz	-40.4 dBm	1 MHz
NR Band n77	3.3 – 4.2 GHz	-40 dBm	1 MHz	This requirement does not apply to IAB-DU and IAB-MT operating in Band n77 or n78
NR Band n78	3.3 – 3.8 GHz	-40 dBm	1 MHz	This requirement does not apply to IAB-DU and IAB-MT operating in Band n77 or n78
NR Band n79	4.4 – 5.0 GHz	-39.5 dBm	1 MHz	This requirement does not apply to IAB-DU and IAB-MT operating in Band n79
NR Band n80	1710 – 1785 MHz	-37.4 dBm	1 MHz
NR Band n81	880 – 915 MHz	-40.4 dBm	1 MHz
NR Band n82	832 – 862 MHz	-45.4 dBm	1 MHz
NR Band n83	703 – 748 MHz	-49.4 dBm	1 MHz
NR Band n84	1920 – 1980 MHz	-35.4 dBm	1 MHz
E-UTRA Band 85 or NR Band n85	728 – 746 MHz	-49.4 dBm	1 MHz
	698 – 716 MHz	-35.4 dBm	1 MHz
NR Band n86	1710 – 1780 MHz	-49.4 dBm	1 MHz
NR Band n89	824 – 849 MHz	-45.4 dBm	1 MHz
NR Band n91	1427 – 1432 MHz	-49.4 dBm	1 MHz
	832 – 862 MHz	-40.4 dBm	1 MHz
NR Band n92	1432 – 1517 MHz	-37.4 dBm	1 MHz
	832 – 862 MHz	-40.4 dBm	1 MHz
NR Band n93	1427 – 1432 MHz	-37.4 dBm	1 MHz
	880 – 915 MHz	-40.4 dBm	1 MHz
NR Band n94	1432 – 1517 MHz	-37.4 dBm	1 MHz
	880 – 915 MHz	-40.4 dBm	1 MHz
NR Band n95	2010 – 2025 MHz	-37.4 dBm	1 MHz
NR Band n96	5925 – 7125 MHz	-39.5 dBm	1 MHz
NR Band n97	2300 – 2400MHz	-40.4 dBm	1 MHz
NR Band n98	1880 – 1920MHz	-40.4 dBm	1 MHz
NR Band n99	1626.5 – 1660.5 MHz	-37.4 dBm	1 MHz
NR Band n101	1900 – 1910 MHz	-40.4 dBm	1 MHz
NR Band n102	6425 – 7125 MHz	-39.5 dBm	1 MHz
E-UTRA Band 103	757 – 758 MHz	-40.4 dBm	1 MHz
	787 – 788 MHz	-37.4 dBm	1 MHz
NR Band n104	6425 – 7125 MHz	-39.5 dBm	1 MHz

NOTE 1: As defined in the scope for spurious emissions in this clause the co-existence requirements in table 6.7.5.4.5.1-1do not apply for the Δf_OBUE frequency range immediately outside the downlink operating band (see table 5.2-1). Emission limits for this excluded frequency range may be covered by local or regional requirements.

NOTE 2: Table 6.7.5.4.5.1-1 assumes that two operating bands, where the frequency ranges in table 5.2-1 would be overlapping, are not deployed in the same geographical area. For such a case of operation with overlapping frequency arrangements in the same geographical area, special co-existence requirements may apply that are not covered by the 3GPP specifications.

6.7.5.5 Co-location requirements

6.7.5.5.1 Definition and applicability

These requirements may be applied for the protection of other BS, IAB-DU or IAB-MT receivers when GSM900, DCS1800, PCS1900, GSM850, CDMA850, UTRA FDD, UTRA TDD, E-UTRA, NR BS, IAB-DU or IAB-MT are co-located with IAB-MT and/or IAB-DU.

The requirements assume a 30 dB coupling loss between transmitter and receiver and are based on co-location with same class.

6.7.5.5.2 Minimum requirements

The minimum requirement for IAB type 1-O is defined in TS 38.174 [2], clause 9.7.5.2.

6.7.5.5.3 Test purpose

For OTA co-locate spurious emission, the test purpose is to verify that the emission is within the specified requirement limits at the CLTA conducted output(s).

6.7.5.5.4 Method of test

6.7.5.5.4.1 Initial conditions

Test environment: normal; see clause B.2.

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

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

– M_RFBW in single-band RIB, see clause 4.9.1;

– B_RFBW_T’_RFBW and B’_RFBW_T_RFBWin multi-band RIB, see clause 4.9.1.

In addition, for multi-band RIB:

– For B_RFBW_T’_RFBW, emission testing above the highest operating band may be omitted.

– For B’_RFBW_T_RFBW, emission testing below the lowest operating band may be omitted.

Directions to be tested: The FR1 requirement is specified as co-location requirement. For general description of co-location requirements, refer to clause 4.12.

The co-location spurious emission is measured at the CLTA conducted output(s).

6.7.5.5.4.2 Procedure

1) Select and place the IAB-Node and CLTA as described in clause 4.12, with parameters as specified in table 4.12.2.2-1 and table 4.12.2.3-1.

2) Several CLTAs might be required to cover the whole co-location spurious emission frequency ranges.

3) Place test antenna in reference direction at far-field distance, aligned in all supported polarizations (single or dual) with the IAB-Node as depicted in annex E.1.3.

4) The test antenna shall be dual (or single) polarized with the same frequency range as the IAB-Node for co-location spurious emission test case.

5) Connect test antenna and CLTA to the measurement equipment as depicted in annex E.1.3.

6) OTA co-location spurious emission is measured as the power sum over all supported polarizations at the CLTA conducted output(s).

7) The measurement device (signal analyser) characteristics shall be:

– Detection mode: True RMS.

8) Set the IAB type 1-O to transmit:

– Set the IAB-Node to transmit maximum power according to the applicable test configuration in clause 4.8 using the corresponding test models or set of physical channels in clause 4.9.2.

– For the IAB-Node declared to be capable of multi-carrier and/or CA operation, set the IAB-Node to transmit according to the applicable test configuration and corresponding power setting specified in clause 4.7.2 and 4.8 using the corresponding test models on all carriers configured.

– For an IAB-Node declared to be capable of Simultaneous transmission between IAB-DU and IAB-MT (D.IAB-3), set the IAB-Node to transmit according to the applicable test configuration and corresponding power setting specified in clause 4.7.2 and 4.8 for IAB-DU and IAB-MT.

9) Measure the emission at the specified frequencies with specified measurement bandwidth.

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

10) For multi-band RIB 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.

6.7.5.5.5 Test requirements

6.7.5.5.5.1 Test requirement for IAB type 1-O

These requirements may be applied for the protection of other IAB receivers when GSM900, DCS1800, PCS1900, GSM850, CDMA850, UTRA FDD, UTRA TDD, E-UTRA and/or NR BS are co-located with a IAB Node.

The requirements assume co-location with base stations of the same class.

NOTE: For co-location with UTRA, the requirements are based on co-location with UTRA FDD or TDD base stations.

This requirement is a co-location requirement as defined in clause 4.9, in TS 38.174 [2], the power levels are specified at the CLTA output.

The output of the CLTA of any spurious emission shall not exceed the test limit in table 6.7.5.5.5.1-1.

For a multi-band RIB, the exclusions and conditions in the notes column of table 6.7.5.5.5.1-1 apply for each supported operating band.

Table 6.7.5.5.5.1-1: IAB-DU and IAB-MT spurious emissions basic limits for co-location with BS or IAB-Node

Co-located system	Frequency range for	Test limits			Measurement	Note
	co-location requirement	WA IAB-DU and WA IAB-MT	MR IAB-DU	LA IAB-DU and LA IAB-MT	bandwidth
GSM900	876 – 915 MHz	-115.9 dBm	-108.9 dBm	-87.9 dBm	100 kHz
DCS1800	1710 – 1785 MHz	-115.9 dBm	-108.9 dBm	–97.9 dBm	100 kHz
PCS1900	1850 – 1910 MHz	-115.9 dBm	-108.9 dBm	–97.9 dBm	100 kHz
GSM850 or CDMA850	824 – 849 MHz	-115.9 dBm	-108.9 dBm	-87.9 dBm	100 kHz
UTRA FDD Band I or E-UTRA Band 1 or NR Band n1	1920 – 1980 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA FDD Band II or E-UTRA Band 2 or NR Band n2	1850 – 1910 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA FDD Band III or E-UTRA Band 3 or NR Band n3	1710 – 1785 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA FDD Band IV or E-UTRA Band 4	1710 – 1755 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA FDD Band V or E-UTRA Band 5 or NR Band n5	824 – 849 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA FDD Band VI, XIX or E-UTRA Band 6, 19	830 – 845 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA FDD Band VII or E-UTRA Band 7 or NR Band n7	2500 – 2570 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA FDD Band VIII or E-UTRA Band 8 or NR Band n8	880 – 915 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA FDD Band IX or E-UTRA Band 9	1749.9 – 1784.9 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA FDD Band X or E-UTRA Band 10	1710 – 1770 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA FDD Band XI or E-UTRA Band 11	1427.9 –1447.9 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA FDD Band XII or E-UTRA Band 12 or NR Band n12	699 – 716 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA FDD Band XIII or E-UTRA Band 13	777 – 787 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA FDD Band XIV or E-UTRA Band 14 or NR Band n14	788 – 798 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
E-UTRA Band 17	704 – 716 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
E-UTRA Band 18 or NR Band n18	815 – 830 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA FDD Band XX or E-UTRA Band 20 or NR Band n20	832 – 862 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA FDD Band XXI or E-UTRA Band 21	1447.9 – 1462.9 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA FDD Band XXII or E-UTRA Band 22	3410 – 3490 MHz	-113.7 dBm	-108.7 dBm	-105.7 dBm	100 kHz	This is not applicable to IAB-DU and IAB-MT operating in Band n77 or n78
E-UTRA Band 23	2000 – 2020 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
E-UTRA Band 24	1626.5 – 1660.5 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA FDD Band XXV or E-UTRA Band 25 or NR Band n25	1850 – 1915 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA FDD Band XXVI or E-UTRA Band 26 or NR Band n26	814 – 849 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
E-UTRA Band 27	807 – 824 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
E-UTRA Band 28 or NR Band n28	703 – 748 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
E-UTRA Band 30 or NR Band n30	2305 – 2315 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
E-UTRA Band 31	452.5 – 457.5 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA TDD Band a) or E-UTRA Band 33	1900 – 1920 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA TDD Band a) or E-UTRA Band 34 or NR band n34	2010 – 2025 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA TDD Band b) or E-UTRA Band 35	1850 – 1910 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA TDD Band b) or E-UTRA Band 36	1930 – 1990 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA TDD Band c) or E-UTRA Band 37	1910 – 1930 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA TDD Band d) or E-UTRA Band 38 or NR Band n38	2570 – 2620 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA TDD Band f) or E-UTRA Band 39 or NR band n39	1880 – 1920MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
UTRA TDD Band e) or E-UTRA Band 40 or NR Band n40	2300 – 2400MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
E-UTRA Band 41 or NR Band n41, n90	2496 – 2690 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz	This is not applicable to IAB-DU and IAB-MT operating in Band n41
E-UTRA Band 42	3400 – 3600 MHz	-113.7 dBm	-108.7 dBm	-105.7 dBm	100 kHz	This is not applicable to IAB-DU and IAB-MT operating in Band n77 or n78
E-UTRA Band 43	3600 – 3800 MHz	-113.7 dBm	-108.7 dBm	-105.7 dBm	100 kHz	This is not applicable to IAB-DU and IAB-MT operating in Band n77 or n78
E-UTRA Band 44	703 – 803 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
E-UTRA Band 45	1447 – 1467 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
E-UTRA Band 46 or NR Band n46	5150 – 5925 MHz	N/A	-108.6 dBm	-105.6 dBm	100 kHz
E-UTRA Band 48 or NR Band n48	3550 – 3700 MHz	-113.7 dBm	-108.7 dBm	-105.7 dBm	100 kHz	This is not applicable to IAB-DU and IAB-MT operating in Band n77 or n78
E-UTRA Band 50 or NR Band n50	1432 – 1517 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
E-UTRA Band 51 or NR Band n51	1427 – 1432 MHz	N/A	N/A	-105.9 dBm	100 kHz
E-UTRA Band 53 or NR Band n53	2483.5 – 2495 MHz	N/A	-108.9 dBm	-105.9 dBm	100 kHz	This is not applicable to IAB-DU and IAB-MT operating in Band n41
E-UTRA Band 65 or NR Band n65	1920 – 2010 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
E-UTRA Band 66 or NR Band n66	1710 – 1780 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
E-UTRA Band 68	698 – 728 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
E-UTRA Band 70 or NR Band n70	1695 – 1710 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
E-UTRA Band 71 or NR Band n71	663 – 698 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
E-UTRA Band 72	451 – 456 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
E-UTRA Band 74 or NR Band n74	1427 – 1470 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
NR Band n77	3.3 – 4.2 GHz	-113.7 dBm	-108.7 dBm	-105.7 dBm	100 kHz	This is not applicable to IAB-DU and IAB-MT operating in Band n77 or n78
NR Band n78	3.3 – 3.8 GHz	-113.7 dBm	-108.7 dBm	-105.7 dBm	100 kHz	This is not applicable to IAB-DU and IAB-MT operating in Band n77 or n78
NR Band n79	4.4 – 5.0 GHz	-113.6 dBm	-108.6 dBm	-105.6 dBm	100 kHz	This is not applicable to IAB-DU and IAB-MT operating in Band n79
NR Band n80	1710 – 1785 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
NR Band n81	880 – 915 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
NR Band n82	832 – 862 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
NR Band n83	703 – 748 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
NR Band n84	1920 – 1980 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
E-UTRA Band 85 or NR Band n85	698 – 716 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
NR Band n86	1710 – 1780 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
NR Band n89	824 – 849 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
NR Band n91	832 – 862 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
NR Band n92	832 – 862 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
NR Band n93	880 – 915 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
NR Band n94	880 – 915 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
NR Band n95	2010 – 2025 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
NR Band n96	5925 – 7125 MHz	N/A	-107.6 dBm	-104.6 dBm	100 kHz
NR Band n97	2300 – 2400MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
NR Band n98	1880 – 1920 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
NR Band n99	1626.5 – 1660.5 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
NR band n101	1900 – 1910 MHz	-113.9 dBm	NA	NA	100 kHz
NR Band n102	6425 – 7125 MHz	N/A	-107.6 dBm	-104.6 dBm	100 kHz
E-UTRA Band 103	787 – 788 MHz	-113.9 dBm	-108.9 dBm	-105.9 dBm	100 kHz
NR Band n104	6425 – 7125 MHz	-112.6 dBm	-107.6 dBm	-104.6 dBm	100 kHz

NOTE 1: As defined in the scope for spurious emissions in this clause, the co-location requirements in table 6.6.5.2.3-1 do not apply for the frequency range extending Δf_OBUE immediately outside the transmit frequency range of a IAB-MT and IAB-DU. The current state-of-the-art technology does not allow a single generic solution for co-location with other system on adjacent frequencies for 30dB antenna to antenna minimum coupling loss. However, there are certain site-engineering solutions that can be used. These techniques are addressed in TR 25.942 [15].

NOTE 2: Table 6.6.5.2.3-1 assumes that two operating bands, where the corresponding transmit and receive frequency ranges in table 5.2-1 would be overlapping, are not deployed in the same geographical area. For such a case of operation with overlapping frequency arrangements in the same geographical area, special co-location requirements may apply that are not covered by the 3GPP specifications.