Content for TS 38.175 Word version: 18.1.0

3.1 Definitions 3.2 Symbols 3.3 Abbreviations
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1 Scope p. 8

The present document covers the assessment for NR Integrated access and backhaul (IAB) node and associated ancillary equipment in respect of Electromagnetic Compatibility (EMC).

The present document specifies the applicable test conditions, performance assessment and performance criteria for NR Integrated access and backhaul (IAB) node and associated ancillary equipment.

The environment classification used in the present document refers to the residential, commercial and light industrial environment classification used in IEC 61000-6-1 [4] and IEC 61000-6-3 [5].

The EMC requirements have been selected to ensure an adequate level of compatibility for apparatus at residential, commercial and light industrial environments. The levels, however, do not cover extreme cases which may occur in any location but with low probability of occurrence.

2 References p. 8

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.

References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
For a specific reference, subsequent revisions do not apply.
For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.

[1]

TR 21.905: "Vocabulary for 3GPP Specifications"

[2]

TS 38.174: "NR; Integrated access and backhaul radio transmission and reception".

[3]

TR 38.809: "NR; Background for Integrated access and backhaul radio transmission and reception".

[4]

IEC 61000-6-1: "Electromagnetic compatibility (EMC) - Part 6-1: Generic standards - Immunity for residential, commercial and light-industrial environments".

[5]

IEC 61000-6-3: "Electromagnetic compatibility (EMC) - Part 6-3: Generic standards - Emission standard for equipment in residential environments".

[6]

CISPR 32: "Electromagnetic compatibility of multimedia equipment - Emission requirements".

[7]

IEC 60050-161: "International Electrotechnical Vocabulary (IEV) - Part 161: Electromagnetic compatibility".

[8]

IEC 61000-3-2: "Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic current emissions (equipment input current ≤ 16 A per phase)".

[9]

IEC 61000-3-12: "Electromagnetic compatibility (EMC) - Part 3-12: Limits - Limits for harmonic currents produced by equipment connected to public low-voltage system with input current >16 A and ≤ 75 A per phase".

[10]

IEC 61000-3-3: "Electromagnetic compatibility (EMC) - Part 3-3: Limits - Limitation of voltage changes, voltage fluctuations and flicker in low-voltage supply systems, for equipment with rated current ≤ 16 A per phase and not subject to conditional connection".

[11]

IEC 61000-3-11: "Electromagnetic compatibility (EMC) - Part 3-11: Limits - Limitation of voltage changes, voltage fluctuations and flicker in low-voltage supply systems - Equipment with rated current ≤ 75 A and subject to conditional connections".

[12]

IEC 61000-4-2: "Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test".

[13]

IEC 61000-4-3: "Electromagnetic compatibility (EMC) - Part 4-3: Testing and measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test".

[14]

IEC 61000-4-4: "Electromagnetic compatibility (EMC) - Part 4-4: Testing and measurement techniques - Electrical fast transient/burst immunity test".

[15]

IEC 61000-4-5: "Electromagnetic compatibility (EMC) - Part 4-5: Testing and measurement techniques - Surge immunity test".

[16]

IEC 61000-4-6: "Electromagnetic compatibility (EMC) - Part 4-6: Testing and measurement techniques - Immunity to conducted disturbances, induced by radio frequency fields".

[17]

IEC 61000-4-11: "Electromagnetic compatibility (EMC) - Part 4-11: Testing and measurement techniques - Voltage dips, short interruptions and voltage variations immunity tests".

[18]

IEC 61000-4-21: "Electromagnetic compatibility (EMC) - Part 4-21: Testing and measurement techniques - Reverberation chamber test methods".

[19]

ETSI EN 301 489-1: "ElectroMagnetic Compatibility (EMC) standard for radio equipment and services; Part 1: Common technical requirements; Harmonised Standard covering the essential requirements of article 3.1(b) of Directive 2014/53/EU and the essential requirements of article 6 of Directive 2014/30/EU".

[20]

Recommendation ITU-R SM.329: "Unwanted emissions in the spurious domain".

[21]

Recommendation ITU-R SM.1539: "Variation of the boundary between the out-of-band and spurious domains required for the application of Recommendations ITU-R SM.1541 and ITU-R SM.329".

[22]

TS 38.104: "NR; Base Station (BS) radio transmission and reception".

[23]

CISPR 16-1-4: 2019-01: "Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-4: Radio disturbance and immunity measuring apparatus - Antennas and test sites for radiated disturbance measurements".

[24]

TS 38.176-1: "NR; Integrated access and backhaul (IAB) conformance testing; Part 1: Conducted conformance testing".

[25]

TS 38.176-2: "NR; Integrated Access and Backhaul (IAB) conformance testing; Part 2: Radiated conformance testing; ".

[26]

IEC 61000-6-8: "Electromagnetic compatibility (EMC) - Part 6-8: Generic standards - Emission standard for professional equipment in commercial and light-industrial locations".

[27]

TS 38.300: "NR; NR and NG-RAN Overall description; Stage-2".

3 Definitions, symbols and abbreviations p. 10

3.1 Definitions p. 10

For the purposes of the present document, the terms and definitions given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.

Channel bandwidth:

the RF bandwidth supporting a single NR RF carrier with the transmission bandwidth configured in the uplink or downlink of a cell. The channel bandwidth is measured in MHz and is used as a reference for transmitter and receiver RF requirements.

Continuous phenomena:

electromagnetic disturbance, the effects of which on a particular device or equipment cannot be resolved into a succession of distinct effects (IEC 60050-161 [7]).

Enclosure port:

physical boundary of the equipment through which electromagnetic fields may radiate or impinge.

Exclusion band:

frequency range(s) not subject to test or assessment.

IAB-node:

RAN node that supports wireless access to UEs and wirelessly backhauls the access traffic.

IAB type 1-H:

IAB-MT and IAB-DU operating at FR1 with a requirement set holding requirements defined at the respective TAB and OTA requirements defined at the respective RIB

IAB type 1-O:

IAB-MT and IAB-DU operating at FR1 with a requirement set consisting only of OTA requirements defined at the respective RIB.

IAB type 2-O:

IAB-MT and IAB-DU operating at FR2 with a requirement set consisting only of OTA requirements defined at the respective RIB

integral antenna:

antenna designed for permanent connection to the equipment and considered part of the enclosure port.

Mobile IAB-node:

Mobile IAB-node as defined in TS 38.300

Mobile IAB-DU:

IAB-DU function on the mobile IAB-node as defined in TS 38.300

Mobile IAB-MT:

IAB-MT function on the mobile IAB-node as defined in TS 38.300

Mobile IAB type 1-H:

Mobile IAB-MT operating at FR1 with a requirement set consisting of conducted requirements defined at individual TAB connectors and OTA requirements defined at RIB

Mobile IAB-MT type 1-O:

Mobile IAB-MT operating at FR1 with a requirement set consisting only of OTA requirements defined at the RIB

Mobile IAB-MT type 2-O:

Mobile IAB-MT operating at FR2 with a requirement set consisting only of OTA requirements defined at the RIB

Operating band:

frequency range in which NR operates (paired or unpaired), that is defined with a specific set of technical requirements.

Port:

particular interface of EUT used for EMC requirements testing purposes.

EXAMPLE 1:

Examples of ports for IAB type 1-H are as presented in figure 3.1-1:

Reproduction of 3GPP TS 38.175, Fig. 3.1-1: Examples of ports for IAB type 1-H

Figure 3.1-1: Examples of ports for IAB type 1-H

EXAMPLE 2:

Examples of ports for IAB type 1-O and IAB type 2-O (i.e. with no antenna ports) are as presented in figure 3.1-2:

Reproduction of 3GPP TS 38.175, Fig. 3.1-2: Examples of ports for IAB type 1-O and IAB type 2-O

Figure 3.1-2: Examples of ports for IAB type 1-O and IAB type 2-O

Receiver exclusion band:

band of frequencies over which no tests of radiated immunity of a receiver are made, and expressed relative to the IAB receive band.

Signal port:

port intended for the interconnection of components of an EUT, or between an EUT and associated equipment and used in accordance with relevant functional specifications (for example for the maximum length of cable connected to it).

Spatial exclusion zone:

range of angles where no tests of radiated immunity are made for IAB type 1-O or IAB type 2-O (i.e. half sphere around the EUT's radiating direction).

Throughput:

number of payload bits successfully received per second for a reference measurement channel in a specified reference condition.

Telecommunication port:

ports which are intended to be connected to telecommunication networks (e.g. public switched telecommunication networks, integrated services digital networks), local area networks (e.g. Ethernet, Token Ring) and similar networks.

Transient phenomena:

pertaining to or designating a phenomena or a quantity which varies between two consecutive steady states during a time interval short compared with the time-scale of interest (IEC 60050-161 [7]).

3.2 Symbols p. 11

For the purposes of the present document, the following symbols apply:

BW_Channel

Channel bandwidth

Δf_OBUE

Maximum offset of the operating band unwanted emissions mask from the downlink operating band edge

F_DL,low

The lowest frequency of the downlink operating band

F_DL,high

The highest frequency of the downlink operating band

F_UL,low

The lowest frequency of the uplink operating band

F_UL,high

The highest frequency of the uplink operating band

3.3 Abbreviations p. 12

For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.

Alternating Current

AMN

Artificial Mains Network

Band Category

Backhaul

Carrier Aggregation

CDN

Coupling/Decoupling Network

Capability Set

Direct Current

EIRP

Equivalent Isotropic Radiated Power

EMC

Electromagnetic Compatibility

e.r.p.

Effective Radiated Power

ESD

Electrostatic Discharge

EUT

Equipment Under Test

Frequency Range

FRC

Fixed Reference Channel

IAB

Integrated Access and Backhaul

mIAB

Mobile IAB

Non Contiguous

Next Generation

NGC

Next Generation Core

New Radio

NR-ARFCN

NR Absolute Radio Frequency Channel Number

NRTC

NR Test Configuration

NTC

Test Configuration for Non-contiguous operation

RAT

Radio Access Technology

Radio Frequency

RIB

Radiated Interface Boundary

rms

root mean square

Single Carrier

Test Configuration