4.6 Manufacturer’s declarations

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

The following IAB manufacturer’s declarations listed in table 4.6-1, when applicable to the IAB under test, are required to be provided by the manufacturer for radiated requirements testing for IAB type 1-H, IAB type 1-O and IAB type 2-O. Declarations may be provided independently for IAB-MT and IAB-DU. The applicability columns for different IAB-types in table 4.6-1 designate applicability for both IAB-DU and IAB-MT, unless otherwise stated.

For the IAB type 1-H declarations required for the conducted requirements testing, refer to TS 38.176-1 [3], clause 4.6.

Table 4.6-1: Manufacturers declarations for IAB type 1-H, IAB type 1-O and IAB type 2-O radiated test requirements

Declaration identifier

Declaration

Description

Applicability

(Note 1)

IAB type 1-H

(Note 2)

IAB type 1-O

IAB type 2-O

D.1

Coordinate system reference point

Location of coordinated system reference point in reference to an identifiable physical feature of the IAB-MT or IAB-DU enclosure.

x

x

x

D.2

Coordinate system orientation

Orientation of the coordinate system in reference to an identifiable physical feature of the IAB enclosure.

x

x

x

D.3

Beam identifier

A unique title to identify a beam, e.g. a, b, c or 1, 2, 3. The vendor may declare any number of beams with unique identifiers. The minimum set to declare for conformance, corresponds to the beams at the reference beam direction with the highest intended EIRP, and covering the properties listed below:

1) A beam with the narrowest intended BeWθ and narrowest intended BeWϕ possible when narrowest intended BeWθ is used.

2) A beam with the narrowest intended BeWϕ and narrowest intended BeWθ possible when narrowest intended BeWϕ is used.

3) A beam with the widest intended BeWθ and widest intended BeWϕ possible when widest intended BeWθ is used.

4) A beam with the widest intended BeWϕ and widest intended BeWθ possible when widest intended BeWϕ is used.

5) A beam which provides the highest intended EIRP of all possible beams.

When selecting the above five beam widths for declaration, all beams that the IAB is intended to produce shall be considered, including beams that during operation may be identified by any kind of cell or UE specific reference signals, with the exception of any type of beam that is created from a group of transmitters that are not all phase synchronised.

(Note 3)

x

x

x

D.4

Operating bands and frequency ranges

List of NR operating band(s) supported by the IAB-DU or IAB-MT and if applicable, frequency range(s) within the operating band(s) that the IAB can operate in supported bands declared for every beam (D.3).

(Note 4)

c

x

x

D.5

IAB requirements set

Declaration of one of the IAB requirements set as defined for IAB type 1-H, IAB type 1-O, or IAB type 2-O.

c

x

x

D.6

IAB class

Declared as Wide Area IAB-DU, Medium Range IAB-DU, or Local Area IAB-DU.

Declared as Wide Area IAB-MT, or Local Area IAB-MT.

c

x

x

D.7

IAB channel band width and SCS support

IAB-DU or IAB-MT supported SCS and channel bandwidth per supported SCS. Declared for each beam (D.3) and each operating band (D.4).

c

x

x

D.8

OTA peak directions set reference beam direction pair

The beam direction pair, describing the reference beam peak direction and the reference beam centre direction. Declared for every beam (D.3).

x

x

x

D.9

OTA peak directions set

The OTA peak directions set for each beam. Declared for every beam (D.3).

x

x

x

D.10

OTA peak directions set maximum steering direction(s)

The beam direction pair(s) corresponding to the following points:

1) The beam peak direction corresponding to the maximum steering from the reference beam centre direction in the positive Φ direction, while the θ value being the closest possible to the reference beam centre direction.

2) The beam peak direction corresponding to the maximum steering from the reference beam centre direction in the negative Φ direction, while the θ value being the closest possible to the reference beam centre direction.

3) The beam peak direction corresponding to the maximum steering from the reference beam centre direction in the positive θ direction, while the Φ value being the closest possible to the reference beam centre direction.

4) The beam peak direction corresponding to the maximum steering from the reference beam centre direction in the negative θ direction, while the Φ value being the closest possible to the reference beam centre direction.

The maximum steering direction(s) may coincide with the reference beam centre direction.

Declared for every beam (D.3).

x

x

x

D.11

Rated beam EIRP

The rated EIRP level per carrier (Prated,c,EIRP) at the beam peak direction associated with a particular beam direction pair for each of the declared maximum steering directions (D.10), as well as the reference beam direction pair (D.8). Declared for every beam (D.3).

(Note 12, 14, 18)

x

x

x

D.12

Beamwidth

The beamwidth for the reference beam direction pair and the four maximum steering directions. Declared for every beam (D.3).

x

x

x

D.13

Equivalent beams

List of beams which are declared to be equivalent.

Equivalent beams imply that the beams are expected to have identical OTA peak directions sets and intended to have identical spatial properties at all steering directions within the OTA peak directions set when presented with identical signals. All declarations (D.4 – D.12) made for the beams are identical and the transmitter unit, RDN and antenna array responsible for generating the beam are of identical design.

x

x

x

D.14

Parallel beams

List of beams which have been declared equivalent (D.13) and can be generated in parallel using independent RF power resources.

Independent power resources mean that the beams are transmitted from mutually exclusive transmitter units.

x

x

x

D.15

Number of carriers at maximum TRP

The number of carriers per operating band the IAB is capable of generating at maximum TRP declared for every beam (D.3).

n/a

x

x

D.16

Operating bands with multi-band dependencies

List of operating bands which are generated using transceiver units supporting operation in multiple operating bands through common active RF components. Declared for each operating band for which multi-band transceiver is used.

c

x

n/a

D.17

Maximum radiated IAB RF Bandwidth

Maximum Base Station RF Bandwidth in the operating band, declared for each supported operating band (D.4).

(Note 15)

c

x

x

D.18

Maximum Radio Bandwidth of the operating band with multi-band dependencies

Largest Radio Bandwidth that can be supported by the operating bands with multi-band dependencies.

Declared for each supported operating band which has multi-band dependencies (D.16).

c

x

n/a

D.19

Total RF bandwidth (BWtot)

Total RF bandwidth BWtot of transmitter and receiver, declared per the band combinations (D.52).

c

x

x

D.20

CA-only operation

Declared of CA-only (with equal power spectral density among carriers) but not multiple carriers operation, declared per operating band (D.4) and per beam (D.3).

c

x

x

D.21

Maximum number of supported carriers per operating band in multi-band operations

Maximum number of supported carriers per supported operating band declared to have multi-band dependencies (D.16).

c

x

n/a

D.22

Contiguous or non-contiguous spectrum operation support

Ability of IAB-DU or IAB-MT to support contiguous or non-contiguous (or both) frequency distribution of carriers when operating multi-carrier in an operating band.

c

x

x

D.23

OSDD identifier

A unique identifier for the OSDD.

x

x

n/a

D.24

OSDD operating band support

Operating band supported by the OSDD, declared for every OSDD (D.23).

(Note 5)

x

x

n/a

D.25

OTA sensitivity supported IAB channel bandwidth and SCS

The IAB-DU or IAB-MTsupported SCS and channel bandwidth per supported SCS by each OSDD.

x

x

n/a

D.26

Redirection of receiver target support

Ability to redirect the receiver target related to the OSDD.

x

x

n/a

D.27

Minimum EIS for FR1 (EISminSENS)

The minimum EISminSENS requirement (i.e. maximum allowable EIS value) applicable to all sensitivity RoAoA per OSDD.

Declared per NR supported channel BW for the OSDD (D.30).

The lowest EIS value for all the declared OSDD’s is called minSENS, while its related range of angles of arrival is called minSENS RoAoA.

(Note 6)

x

x

n/a

D.28

EIS REFSENS for FR2 (EISREFSENS_50M)

The EISREFSENS_50M level applicable in the OTA REFSENS RoAoA, (used as a basis for the derivation of the FR2 EISREFSENS for other channel bandwidths supported by IAB). (Note 7)

n/a

n/a

x

D.29

Receiver target reference direction Sensitivity Range of Angle of Arrival

The sensitivity RoAoA associated with the receiver target reference direction (D.31) for each OSDD.

x

x

n/a

D.30

Receiver target redirection range

For each OSDD the associated union of all the sensitivity RoAoA achievable through redirecting the receiver target related to the OSDD.

(Note 8)

x

x

n/a

D.31

Receiver target reference direction

For each OSDD an associated direction inside the receiver target redirection range (D.30).

(Note 9)

x

x

n/a

D.32

Conformance test directions sensitivity RoAoA

For each OSDD that includes a receiver target redirection range, four sensitivity RoAoA comprising the conformance test directions (D.33).

x

x

n/a

D.33

Conformance test directions

For each OSDD four conformance test directions.

If the OSDD includes a receiver target redirection range the following four directions shall be declared:

1) The direction determined by the maximum φ value achievable inside the receiver target redirection range, while θ value being the closest possible to the receiver target reference direction.

2) The direction determined by the minimum φ value achievable inside the receiver target redirection range, while θ value being the closest possible to the receiver target reference direction.

3) The direction determined by the maximum θ value achievable inside the receiver target redirection range, while φ value being the closest possible to the receiver target reference direction.

4) The direction determined by the minimum θ value achievable inside the receiver target redirection range, while φ value being the closest possible to the receiver target reference direction.

If an OSDD does not include a receiver target redirection range the following 4 directions shall be declared:

1) The direction determined by the maximum φ value achievable inside the sensitivity RoAoA, while θ value being the closest possible to the receiver target reference direction.

2) The direction determined by the minimum φ value achievable inside the sensitivity RoAoA, while θ value being the closest possible to the receiver target reference direction.

3) The direction determined by the maximum θ value achievable inside the sensitivity RoAoA, while φ value being the closest possible to the receiver target reference direction.

4) The direction determined by the minimum θ value achievable inside the sensitivity RoAoA, while φ value being the closest possible to the receiver target reference direction.

x

x

n/a

D.34

OTA coverage range

Declared as a single range of directions within which selected TX OTA requirements are intended to be met.

(Note 10)

x

x

x

D.35

OTA coverage range reference direction

The direction describing the reference direction of the OTA converge range (D.34).

(Note 11)

x

x

x

D.36

OTA coverage range maximum directions

The directions corresponding to the following points:

1) The direction determined by the maximum φ value achievable inside the OTA coverage range, while θ value being the closest possible to the OTA coverage range reference direction.

2) The direction determined by the minimum φ value achievable inside the OTA coverage range, while θ value being the closest possible to the OTA coverage range reference direction.

3) The direction determined by the maximum θ value achievable inside the OTA coverage range, while φ value being the closest possible to the OTA coverage range reference direction.

4) The direction determined by the minimum θ value achievable inside the OTA coverage range, while φ value being the closest possible to the OTA coverage range reference direction.

x

x

x

D.37

The rated carrier OTA IAB power, Prated,c,TRP

Prated,c,TRP is declared as TRP OTA power per carrier, declared per supported operating band.

(Notes 12, 14, 18)

n/a

x

x

D.38

Rated transmitter TRP, Prated,t,TRP

Rated total radiated output power.

Declared per supported operating band.

(Notes 12,14, 18)

n/a

x

x

D.39

CLTA placement for co-location test

The manufacturer shall declare the side of EUT where radiating elements are placed closest to the edge of EUT when applicable. The CLTA shall be placed at the EUT side where radiating elements are placed closest.

n/a

x

n/a

D.40

Spurious emission category

Declare the IAB-DU or IAB-MTspurious emission category as either category A or B with respect to the limits for spurious emissions, as defined in Recommendation ITU-R SM.329 [5].

c

x

x

D.41

Additional operating band unwanted emissions

The manufacturer shall declare whether the IAB under test is intended to operate in geographic areas where the additional operating band unwanted emission limits defined in clause 6.7.4 apply.

c

x

x

D.42

Co-existence with other systems

The manufacturer shall declare whether the IAB under test is intended to operate in geographic areas where one or more of the systems GSM850, GSM900, DCS1800, PCS1900, UTRA FDD, UTRA TDD, E-UTRA and/or PHS operating in another operating band are deployed.

c

x

x

D.43

Co-location with other base stations

The manufacturer shall declare whether the IAB under test is intended to operate co-located with Base Stations of one or more of the systems GSM850, GSM900, DCS1800, PCS1900, UTRA FDD, UTRA TDD and/or E-UTRA operating in another operating band.

c

x

n/a

D.44

Single-band RIB or multi-band RIB

List of single-band RIB and/or multi-band RIB for the supported operating bands (D.4).

c

x

n/a

D.45

Single or multiple carrier

IAB capability to operate with a single carrier (only) or multiple carriers. Declared per supported operating band, per RIB.

(Note 17)

c

x

x

D.46

Maximum number of supported carriers per operating band

Maximum number of supported carriers. Declared per supported operating band, per RIB.

(Note 15)

c

x

x

D.47

Total maximum number of supported carriers

Maximum number of supported carriers for all supported operating bands. Declared per RIB.

c

x

x

D.48

Other band combination multi-band restrictions

Declare any other limitation under simultaneous operation in the declared band combinations (D.16), which have any impact on the test configuration generation.

c

x

n/a

D.49

Ncells

Number corresponding to the minimum number of cells that can be transmitted by an IAB-DU or IAB-MT in a particular operating band. Declared per operating band (D.4).

c

n/a

n/a

D.50

Maximum supported power difference between carriers

Maximum supported power difference between carriers in each supported operating band. Declared per operating band (D.4).

c

x

x

D.51

Maximum supported power difference between carriers in different operating bands

Maximum supported power difference between any two carriers in any two different supported operating bands. Declared per operating bands combination (D.52). (Note 19)

c

x

n/a

D.52

Operating band combination support

List of operating bands combinations supported by single-band RIB(s) and/or multi-band RIB(s) of the IAB-DU or IAB-MT.

c

x

n/a

D.53

OTA REFSENS RoAoA

Range of angles of arrival associated with the OTA REFSENS.

n/a

x

x

D.54

OTA REFSENS receiver target reference direction

Reference direction inside the OTA REFSENS RoAoA (D.53).

n/a

x

x

D.55

OTA REFSENS conformance test directions

The following four OTA REFSENS conformance test directions shall be declared:

1) The direction determined by the maximum φ value achievable inside the OTA REFSENS RoAoA, while θ value being the closest possible to the OTA REFSENS receiver target reference direction.

2) The direction determined by the minimum φ value achievable inside the OTA REFSENS RoAoA, while θ value being the closest possible to the OTA REFSENS receiver target reference direction.

3) The direction determined by the maximum θ value achievable inside the OTA REFSENS RoAoA, while φ value being the closest possible to the OTA REFSENS receiver target reference direction.

4) The direction determined by the minimum θ value achievable inside the OTA REFSENS RoAoA, while φ value being the closest possible to the OTA REFSENS receiver target reference direction.

n/a

x

x

D.56

Supported frequency range of the NR operating band

List of supported frequency ranges representing fractional bandwidths (FBW) of operating bands with FBW larger than 6%.

x

x

x

D.57

Rated beam EIRP at lower end of the fractional bandwidth (Prated,c,FBWlow)

The rated EIRP level per carrier at lower frequency range of the fractional bandwidth (Prated,c,FBWlow), at the beam peak direction associated with a particular beam direction pair for each of the declared maximum steering directions (D.10), as well as the reference beam direction pair (D.8).

Declared per beam for all supported frequency ranges (D.56).

(Notes 12, 13, 14, 15, 18)

x

x

x

D.58

Rated beam EIRP at higher frequency range of the fractional bandwidth (Prated,c,FBWhigh)

The rated EIRP level per carrier at higher frequency range of the fractional bandwidth (Prated,c,FBWhigh), at the beam peak direction associated with a particular beam direction pair for each of the declared maximum steering directions (D.10), as well as the reference beam direction pair (D.8).

Declared per beam for all supported frequency ranges in (D.56).

(Notes 12, 13, 14 ,15, 18)

x

x

x

D.59

Relation between supported maximum RF bandwidth, number of carriers and Rated maximum TRP

If the rated transmitter TRP and total number of supported carriers are not simultaneously supported, the manufacturer shall declare the following additional parameters:

– The reduced number of supported carriers at the rated transmitter TRP;

– The reduced total output power at the maximum number of supported carriers.

n/a

x

x

D.60

Inter-band CA

Declaration of operating band(s) combinations supporting inter‑band CA. Declared per operating band combination (D.52).

c

x

x

D.61

Intra-band contiguous CA

Declaration of operating band(s) supporting intra-band contiguous CA. Declared per operating band with CA support.

c

x

x

D.62

Intra-band non-contiguous CA

Declaration of operating band(s) supporting intra-band non‑contiguous CA. Declared per operating band with CA support.

c

x

x

D.63

Total maximum number of supported carriers in multi-band operation

Maximum number of supported carriers for all supported operating bands declared to have multi-band dependencies (D.16).

c

x

n/a

D.IAB-1

Same RF implementation

Declaration whether IAB-MT and IAB-DU have the same RF implementation.

c

x

x

D.IAB-2

IAB-MT test model PT-RS configuration

Declaration of PT-RS configuration in IAB-MT test model: without PT-RS, with PT-RS or both.

n/a

n/a

x

D.IAB-3

IAB simultaneous operation

Declare support of IAB simultaneous operation, simultaneous transmission, or simultaneous reception or both.

c

x

x

D.IAB-4

Maximum power imbalance for IAB simultaneous transmission

Declare the maximum PSD offset in dB of IAB-MT carrier and IAB-DU carrier for IAB simultaneous transmission

c

x

x

D.100

PUSCH mapping type

IAB-DU only: Declaration of the supported PUSCH mapping type for FR1 as specified in TS 38.211 [7], i.e., type A, type B or both.

c

x

n/a

D.101

PUSCH additional DM-RS positions

IAB-DU only: Declaration of the supported additional DM-RS position(s) for FR2, i.e., pos0, pos1, or both.

n/a

n/a

x

D.102

PUCCH format

IAB-DU only: Declaration of the supported PUCCH format(s) as specified in TS 38.211 [7], i.e., format 0, format 1, format 2, format 3, format 4.

c

x

x

D.103

PRACH format and SCS

IAB-DU only: Declaration of the supported PRACH format(s) as specified in [x], i.e., format: 0, A1, A2, A3, B4, C0, C2.

Declaration of the supported SCS(s) per supported PRACH format with short sequence, as specified in TS 38.211 [7], i.e.:

– For IAB type 1-O: 15 kHz, 30 kHz or both.

– For IAB type 2-O: 60 kHz, 120 kHz or both.

c

x

x

D.104

Additional DM-RS for PUCCH format 3

IAB-DU only: Declaration of the supported additional DM-RS for PUCCH format 3: without additional DM-RS, with additional DM-RS or both.

c

x

x

D.105

Additional DM-RS for PUCCH format 4

IAB-DU only: Declaration of the supported additional DM-RS for PUCCH format 4: without additional DM-RS, with additional DM-RS or both.

c

x

x

D.106

PUSCH PT-RS

IAB-DU only: Declaration of PT-RS in PUSCH support: without PT-RS, with PT-RS or both.

n/a

n/a

x

D.107

PUCCH multi-slot

Declaration of multi-slot PUCCH support.

c

x

n/a

D.108

UL CA

IAB-DU only: For the highest supported SCS, declaration of the carrier combination with the largest aggregated bandwidth. If there is more than one combination, the carrier combination with the largest number of carriers shall be declared.

c

x

x

D.109

Modulation order

IAB-DU only: Declaration of the supported modulation orders:

QPSK, 16QAM, 64QAM

c

x

x

D.110

Transform precoding

IAB-DU only: Declaration on the supporting of transform precoding

c

x

x

D.200

256QAM for PDSCH for FR1

Declaration of the supported of 256QAM modulation scheme for PDSCH for FR1, i.e. supported or not supported.

c

x

n/a

D.201

Maximum number of ports across all configured NZP-CSI-RS resources per CC

Declaration of the maximum number of ports across all configured NZP-CSI-RS resources per CC, i.e. 2, 4, 8, 12, 16, 24, 32, 40, 48 … ,256 or not supported.

c

x

n/a

D.202

Maximum number of PDSCH MIMO layers

Declaration of the the maximum number of spatial multiplexing layer(s) supported by the UE for DL reception, i.e. 2, 4, 8 or not supported.

c

x

x

D.203

1 port of DL PTRS

Declaration of the supported of PT-RS with 1 antenna port in DL reception, i.e. supported or not supported.

n/a

n/a

x

NOTE 1: Manufacturer declarations applicable per IAB requirement set were marked as "x". Manufacturer declarations not applicable per IAB requirement set were marked as "n/a".

NOTE 2: For IAB type 1-H, the only radiated declarations are related to EIRP and EIS requirements. For IAB type 1-H declarations required for the conducted requirements testing, refer to TS 38.176-1 [3]. For declarations marked as ‘c’, related conducted declarations in TS 38.176-1 [3] apply. When separately declared, they shall still use the same declaration identifier.

NOTE 3: Depending on the capability of the system some of these beams may be the same. For those same beams, testing is not repeated.

NOTE 4: These operating bands are related to their respective single‑band RIBs.

NOTE 5: As each identified OSDD has a declared minimum EIS value (D.27), multiple operating band can only be declared if they have the same minimum EIS declaration.

NOTE 6: If the IAB type 1-H or IAB type 1-O is not capable of redirecting the receiver target related to the OSDD then there is only one RoAoA applicable to the OSDD.

NOTE 7: Although EISREFSENS_50M level is based on a reference measurement channel with BWChannel = 50 MHz, it does not imply that IAB-DU or IAB-MT has to support 50 MHz channel bandwidth.

NOTE 8: Not applicable for IAB type 2-O.

NOTE 9: For an OSDD without receiver target redirection range, this is a direction inside the sensitivity RoAoA.

NOTE 10: OTA coverage range is used for conformance testing of such TX OTA requirements as occupied bandwidth, frequency error, TAE or EVM.

NOTE 11: The OTA coverage reference direction may be the same as the Reference beam direction pair (D.8) but does not have to be.

NOTE 12: If an IAB type 2-O is capable of 64QAM DL operation but not capable of 256QAM DL operation, then up to two rated output power declarations may be made. One declaration is applicable when configured for 64QAM transmissions and the other declaration is applicable when not configured for 64QAM transmissions.

NOTE 13: If D.57 and D.58 are declared for certain frequency range (D.56), there shall be no "Rated beam EIRP" declaration (D.11) for the operating band containing that particular frequency range.

NOTE 14: If an IAB type 1-H or IAB type 1-O is capable of 256QAM DL operation then two rated output power declarations may be made. One declaration is applicable when configured for 256QAM transmissions and the other declaration is applicable when not configured for 256QAM transmissions.

NOTE 15: Parameters for contiguous or non-contiguous spectrum operation in the operating band are assumed to be the same unless they are separately declared.

NOTE 16: void

NOTE 17: In case of IAB type 1-H, this declaration applies per TAB connector.

NOTE 18: If a IAB type 2-O is capable of 256QAM DL operation, then up to three rated output power declarations may be made. One declaration is applicable when configured for 256QAM transmissions, a different declaration is applicable when configured for 64QAM transmissions and the other declaration is applicable when not configured neither for 256QAM nor 64QAM transmissions.

NOTE 19: The power difference is declared at highest rated output power (D.38).

NOTE 20: For declaration applied both IAB-MT and IAB-DU, it can be applied to IAB simultaneous operation where applicable.