ETSI TS 137 113 V15.8.0 (2020-01)

TECHNICAL SPECIFICATION
Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS);
LTE;
NR, E-UTRA, UTRA and GSM/EDGE;
Multi-Standard Radio (MSR) Base Station (BS)
Electromagnetic Compatibility (EMC)
(3GPP TS 37.113 version 15.8.0 Release 15)

3GPP TS 37.113 version 15.8.0 Release 15 1 ETSI TS 137 113 V15.8.0 (2020-01)

Reference
RTS/TSGR-0437113vf80
Keywords
GSM,LTE,UMTS
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ETSI
3GPP TS 37.113 version 15.8.0 Release 15 2 ETSI TS 137 113 V15.8.0 (2020-01)
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ETSI
3GPP TS 37.113 version 15.8.0 Release 15 3 ETSI TS 137 113 V15.8.0 (2020-01)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 5
1 Scope . 6
2 References . 6
3 Definitions, symbols and abbreviations . 8
3.1 Definitions . 8
3.2 Symbols . 11
3.3 Abbreviations . 11
4 Test conditions . 12
4.1 General . 12
4.2 Arrangements for establishing a communication link . 12
4.2.1 Multiple enclosure BS solution . 13
4.3 Narrow band responses on receivers . 13
4.4 Exclusion bands . 13
4.4.1 Transmitter exclusion band . 13
4.4.2 Receiver exclusion band . 13
4.5 BS test configurations . 14
5 Performance assessment . 17
5.1 General . 17
5.2 Assessment of performance in Downlink . 17
5.3 Assessment of performance in Uplink . 18
5.4 Ancillary equipment . 18
6 Performance criteria . 18
6.1 Performance criteria for continuous phenomena for BS . 18
6.1.1 E-UTRA performance criteria . 18
6.1.2 UTRA performance criteria . 19
6.1.3 GSM/EDGE performance criteria . 19
6.1.3.1 GSM/EDGE downlink . 19
6.1.3.2 GSM/EDGE uplink . 20
6.1.4 NB-IoT performance criteria . 20
6.1.5 NR performance criteria . 20
6.2 Performance criteria for transient phenomena for BS . 21
6.3 Performance criteria for continuous phenomena for Ancillary equipment . 21
6.4 Performance criteria for transient phenomena for Ancillary equipment . 21
7 Applicability overview . 22
7.1 Emission . 22
7.2 Immunity . 22
8 Emission . 23
8.1 Test configurations . 23
8.2 Radiated emission from Base Station and ancillary equipment. 23
8.2.1 Radiated emission for Base Stations . 23
8.2.1.1 Definition . 23
8.2.1.2 Test method . 23
8.2.1.3 Limits . 24
8.2.1.4 Interpretation of the measurement results . 24
8.2.2 Radiated emission, ancillary equipment . 25
8.2.2.1 Definition . 25
8.2.2.2 Test method . 25
8.2.2.3 Limits . 25
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8.3 Conducted emission DC power input/output port . 25
8.3.1 Definition . 26
8.3.2 Test method . 26
8.3.3 Limits . 26
8.4 Conducted emissions, AC mains power input/output port . 26
8.4.1 Definition . 26
8.4.2 Test method . 26
8.4.3 Limits . 26
8.5 Harmonic current emissions (AC mains input port) . 27
8.6 Voltage fluctuations and flicker (AC mains input port) . 27
8.7 Telecommunication ports . 27
8.7.1 Definition . 27
8.7.2 Test method . 27
8.7.3 Limits . 27
9 Immunity . 28
9.1 Test configurations . 28
9.2 RF electromagnetic field (80 MHz - 6000 MHz) . 29
9.2.1 Definition . 29
9.2.2 Test method and level . 29
9.2.3 Performance criteria . 29
9.3 Electrostatic discharge . 29
9.3.1 Definition . 29
9.3.2 Test method and level . 29
9.3.3 Performance criteria . 30
9.4 Fast transients common mode . 30
9.4.1 Definition . 30
9.4.2 Test method and level . 30
9.4.3 Performance criteria . 30
9.5 RF common mode (0,15 MHz - 80 MHz) . 30
9.5.1 Definition . 31
9.5.2 Test method and level . 31
9.5.3 Performance criteria . 31
9.6 Voltage dips and interruptions . 31
9.6.1 Definition . 31
9.6.2 Test method and level . 31
9.6.3 Performance criteria . 32
9.7 Surges, common and differential mode . 32
9.7.1 Definition . 32
9.7.2 Test method and level . 32
9.7.2.1 Test method for telecommunication ports directly connected to outdoor cables . 33
9.7.2.2 Test method for telecommunication ports connected to indoor cables . 33
9.7.2.3 Test method for AC power ports . 33
9.7.3 Performance criteria . 33
Annex A (normative): BER assessment for GSM/EDGE . 34
A.1 Assessment of BER at the output of a transmitter . 34
A.1.1 Assessment of BER using static layer 1 functions . 34
A.1.2 Assessment of BER using RXQUAL . 34
A.2 Assessment of BER at the output of a receiver . 34
A.2.1 Assessment of BER using RXQUAL . 34
A.2.2 Assessment of BER using reported BER . 34
Annex B (informative): Change history . 35
History . 37

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3GPP TS 37.113 version 15.8.0 Release 15 5 ETSI TS 137 113 V15.8.0 (2020-01)
Foreword
rd
This Technical Specification has been produced by the 3 Generation Partnership Project (3GPP).
The contents of the present document are subject to continuing work within the TSG and may change following formal
TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an
identifying change of release date and an increase in version number as follows:
Version x.y.z
where:
x the first digit:
1 presented to TSG for information;
2 presented to TSG for approval;
3 or greater indicates TSG approved document under change control.
y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections,
updates, etc.
z the third digit is incremented when editorial only changes have been incorporated in the document.
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3GPP TS 37.113 version 15.8.0 Release 15 6 ETSI TS 137 113 V15.8.0 (2020-01)
1 Scope
The present document covers the assessment of NR, E-UTRA, UTRA, GSM/EDGE and NB-IoT Multi-Standard Radio
(MSR) Base Stations 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,
E-UTRA, UTRA, GSM/EDGE and NB-IoT Base Stations and associated ancillary equipment in one of the following
categories:
- Multi-Standard Radio (MSR) Base Stations for NR, E-UTRA, UTRA and GSM/EDGE meeting the
requirements of TS 37.104 [6], with conformance demonstrated by compliance to TS 37.141 [11].
NOTE: For NR, scope of this specification is limited to BS type 1-C. For EMC requirements of the MSR BS for
BS type 1-H and BS type 1-O, refer to TS 37.114 [39].
- BS type 1-C for NR meeting the requirements of TS 38.104 [35], with conformance demonstrated by compliance
to TS 38.141-1 [36]
- Base Stations for E-UTRA meeting the requirements of TS 36.104 [4], with conformance demonstrated by
compliance to TS 36.141 [9].
- Base Stations for UTRA FDD meeting the requirements of TS 25.104 [2], with conformance demonstrated by
compliance to TS 25.141 [7].
- Base Stations for UTRA TDD meeting the requirements of TS 25.105 [3], with conformance demonstrated by
compliance to TS 25.142 [8].
- Base Stations for GSM/EDGE meeting the requirements of TS 45.005 [5], with conformance demonstrated by
compliance to TS 51.021 [10].
- Base Stations for NB-IoT meeting the requirements of TS 36.104 [4], with conformance demonstrated by
compliance to TS 36.141 [9].
In addition to MSR base stations, the present document covers other BS supporting more than one RAT.
Technical requirements related to the antenna port of Base Stations are not included in the present document. These are
found in the relevant product standards [2-11, 35, 36].
The environment classification used in the present document refers to the residential, commercial, and light industrial
environment classification used in IEC 61000-6-1 [12] and IEC 61000-6-3 [13].
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
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] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications".
[2] 3GPP TS 25.104: "Base Station (BS) radio transmission and reception (FDD)".
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[3] 3GPP TS 25.105: "Base Station (BS) radio transmission and reception (TDD)".
[4] 3GPP TS 36.104: "Evolved Universal Terrestrial Radio Access (E-UTRA); Base Station (BS)
radio transmission and reception ".
[5] 3GPP TS 45.005: "Radio transmission and reception".
[6] 3GPP TS 37.104: "NR, E-UTRA, UTRA and GSM/EDGE; Multi-Standard Radio (MSR) Base
Station (BS) radio transmission and reception".
[7] 3GPP TS 25.141: "Base Station (BS) conformance testing (FDD)".
[8] 3GPP TS 25.142: "Base Station (BS) conformance testing (TDD)".
[9] 3GPP TS 36.141: "Evolved Universal Terrestrial Radio Access (E-UTRA); Base Station (BS)
conformance testing".
[10] 3GPP TS 51.021: "Base Station System (BSS) equipment specification; Radio aspects".
[11] 3GPP TS 37.141: "NR, E-UTRA, UTRA and GSM/EDGE; Multi-Standard Radio (MSR) Base
Station (BS) conformance testing".
[12] IEC 61000-6-1: 2005: "Electromagnetic compatibility (EMC) - Part 6-1: Generic standards –
Immunity for residential, commercial and light-industrial environments".
[13] IEC 61000-6-3: 2006/AMD1:2010: "Electromagnetic compatibility (EMC) - Part 6-3: Generic
standards – Emission standard for residential, commercial and light-industrial environments".
[14] IEC 60050-161: "International Electrotechnical Vocabulary (IEV) - Part 161: Electromagnetic
compatibility".
[15] ITU-R Recommendation SM.329: "Unwanted emissions in the spurious domain".
[16] ITU-R Recommendation SM.1539-1 (2001): "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".
[17] Void
[18] Void
[19] IEC 61000-3-2 (2004): "Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for
≤ 16 A)".
harmonic current emissions (equipment input current
[20] IEC 61000-3-12 (2005): "Electromagnetic compatibility (EMC) - Part 3-12: Limits - Limits for
harmonic current produced by equipment connected to public low-voltage system with input
current >16 A and ≤ 75 A".
[21] IEC 61000-3-3 (2002): "Electromagnetic compatibility (EMC) - Part 3-3: Limits - Limitation of
voltage fluctuations and flicker in low-voltage supply systems for equipment with rated current ≤
16 A".
[22] IEC 61000-3-11 (2000): "Electromagnetic compatibility (EMC) - Part 3-11: Limits – Limitation of
voltage fluctuations and flicker in low-voltage supply systems for equipment with rated current ≤
75 A and subject to conditional connections".
[23] IEC 61000-4-3: "Electromagnetic compatibility (EMC) - Part 4-3: Testing and measurement
techniques - Radiated, radio-frequency electromagnetic field immunity test".
[24] IEC 61000-4-2: "Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement
techniques - Electrostatic discharge immunity test".
[25] IEC 61000-4-4: "Electromagnetic compatibility (EMC) - Part 4-4: Testing and measurement
techniques - Electrical fast transient/burst immunity test".
[26] IEC 61000-4-6: "Electromagnetic compatibility (EMC) - Part 4-6: Testing and measurement
techniques - Immunity to contacted disturbances, induced by radio frequency fields".
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[27] IEC 61000-4-11: "Electromagnetic compatibility (EMC) - Part 4-11: Testing and measurement
techniques - Voltage dips, short interruptions and voltage variations. Immunity tests".
[28] IEC 61000-4-5: "Electromagnetic compatibility (EMC) - Part 4-5: Testing and measurement
techniques - Surge immunity test".
[29] 3GPP TS 25.101: "User Equipment (UE) radio transmission and reception (FDD)".
[30] 3GPP TS 25.102: "User Equipment (UE) radio transmission and reception (TDD)".
[31] 3GPP TS 36.101: "Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE)
radio transmission and reception".
[32] 3GPP TS 45.008: "Radio subsystem link control".
[33] 3GPP TS 51.010-1: " Mobile Station (MS) conformance specification; Part 1: Conformance
specification".
[34] CISPR 32: "Electromagnetic compatibility of multimedia equipment - Emission requirements".
[35] 3GPP TS 38.104: "NR; Base Station (BS) radio transmission and reception".
[36] 3GPP TS 38.141-1: "NR; Base Station (BS) conformance testing; Part 1: Conducted conformance
testing".
[37] 3GPP TS 38.141-2: "NR; Base Station (BS) conformance testing; Part 2: Radiated conformance
testing".
[38] 3GPP TS 38.101-4: "NR; User Equipment (UE) radio transmission and reception; Part 4:
Performance requirements".
[39] 3GPP TS 37.114: "Active Antenna System (AAS) Base Station (BS), Electromagnetic
Compatibility (EMC) "
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in TR 21.905 [1] 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 [1].
Ancillary equipment: Equipment (apparatus), used in connection with a receiver, transmitter or transceiver is
considered as an ancillary equipment (apparatus) if:
- the equipment is intended for use in conjunction with a receiver, transmitter or transceiver to provide additional
operational and/or control features to the radio equipment, (e.g. to extend control to another position or location);
and
- the equipment cannot be used on a stand-alone basis to provide user functions independently of a receiver,
transmitter or transceiver; and
- the receiver, transmitter or transceiver to which it is connected, is capable of providing some intended operation
such as transmitting and/or receiving without the ancillary equipment (i.e. it is not a sub-unit of the main
equipment essential to the main equipment basic functions).
antenna connector: connector at the conducted interface of the BS type 1-C
Band category: group of operating bands for which the same MSR scenarios apply
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Base Station equipment: Radio and/or ancillary equipment intended for operation at a fixed location and powered
directly or indirectly (e.g. via an AC/DC converter or power supply) by AC mains network, or an extended local DC
mains network.
Base Station RF bandwidth: The bandwidth in which a Base Station transmits and/or receives multiple carriers and/or
RATs simultaneously.
Base Station RF bandwidth edge: The frequency of one of the edges of the Base Station RF bandwidth.
BS type 1-C: NR base station operating at FR1 with requirements set consisting only of conducted requirements
defined at individual antenna connectors.
Channel bandwidth: The RF bandwidth supporting a single E-UTRA 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 (continuous disturbance): Electromagnetic disturbance, the effects of which on a particular
device or equipment cannot be resolved into a succession of distinct effects (IEC 60050-161 [14]).
Lower RF bandwidth edge: The frequency of the lower edge of the Base Station RF bandwidth, used as a frequency
reference point for transmitter and receiver requirements.
Maximum Base Station RF bandwidth: The maximum RF bandwidth supported by a BS within an operating band.
Maximum throughput: The maximum achievable throughput for a reference measurement channel.
MB-MSR Base Station: MSR Base Station characterized by the ability of its transmitter and/or receiver to process two
or more carriers in common active RF components simultaneously, where at least one carrier is configured at a different
non-overlapping operating band than the other carrier(s).
MSR Base station: Base Station characterized by the ability of its receiver and transmitter to process two or more
carriers in common active RF components simultaneously in a declared RF bandwidth, where at least one carrier is of a
different RAT than the other carrier(s).
NOTE: A Base Station where receiver or transmitter processes carriers of different RATs simultaneously, but not
through common active RF components, is not an MSR BS according to the above definition. Such a BS
is in the present specification referred to as "other BS supporting more than one RAT".
NB-IoT In-band operation: NB-IoT is operating in-band when it utilizes the resource block(s) within a normal E-
UTRA carrier.
NB-IoT guard band operation: NB-IoT is operating in guard band when it utilizes the unused resource block(s) within
an E-UTRA carrier's guard-band.
NB-IoT standalone operation: NB-IoT is operating standalone when it utilizes its own spectrum, for example the
spectrum currently being used by GERAN systems as a replacement of one or more GSM carriers, as well as scattered
spectrum for potential IoT deployment.
Radio communications equipment: Telecommunications equipment which includes one or more transmitters and/or
receivers and/or parts thereof for use in a fixed, mobile or portable application. It can be operated with ancillary
equipment but if so, is not dependent on it for basic functionality.
Radio equipment: Equipment which contains Radio digital unit and Radio unit.
Radio digital unit: Equipment which contains base band and functionality for controlling Radio unit.
Radio unit: Equipment which contains transmitter and/or receiver.
Port: A particular interface, of the specified equipment (apparatus), with the electromagnetic environment. For
example, any connection point on an equipment intended for connection of cables to or from that equipment is
considered as a port (see figure 3.1.1).
Receiver exclusion band: The receiver exclusion band is the band of frequencies over which no tests of radiated
immunity of a receiver are made. The exclusion band for receivers is expressed relative to the base station receive band.
Signal and control port: Port which carries information or control signals, excluding antenna ports.
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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.
Throughput: The number of payload bits successfully received per second for a reference measurement channel in a
specified reference condition.
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 [14]).
Transmitter exclusion band: The transmitter exclusion band is the band of frequencies over which no tests of radiated
immunity of a transmitter are made. The exclusion band for transmitters is expressed relative to the carrier frequencies
used (the carrier frequencies of the base stations activated transmitter(s)).
Upper RF bandwidth edge: The frequency of the upper edge of the Base Station RF bandwidth, used as a frequency
reference point for transmitter and receiver requirements.

Enclosure Port
AC power port Antenna port
DC power port Signal/control port
Apparatus
Earth port
Telecommunication port
Figure 3.1-1: Examples of ports
BS Equipment
Radio
Equipment
Figure 3.1-2: BS with single enclosure solution
BS Equipment
Radio Equipment
Radio
digital
Radio unit
unit
Figure 3.1-3: BS with multiple enclosure solution
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3.2 Symbols
For the purposes of the present document, the following symbols apply:
BW Channel bandwidth
Channel
F Center frequency of the highest transmitted/received carrier.
C,high
F Center frequency of the lowest transmitted/received carrier.
C,low
F The highest frequency of the downlink operating band
DL_high
F The lowest frequency of the downlink operating band
DL_low
f Frequency offset used for discovering narrowband response for receivers
offset
F Frequency offset from F to the upper RF bandwidth edge or F to the lower RF bandwidth
offset, RAT C,high C,low
edge for a specific RAT
F The highest frequency of the uplink operating band
UL_high
F The lowest frequency of the uplink operating band
UL_low
Δf Maximum offset of the operating band unwanted emissions mask from the operating band edge
OBUE
Δf Maximum offset of the out-of-band boundary from the uplink operating band edge
OOB
3.3 Abbreviations
For the purposes of the present document, the abbreviations given in TR 21.905 [1] 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 [1].
AC Alternating Current
AMN Artificial Mains Network
ARFCN Absolute Radio Frequency Channel Number
BC Band Category
BER Bit Error Ratio
BLER Block Error Ratio
CDN Coupling/Decoupling Network
CS Capability Set
DC Direct Current
E-UTRA Evolved Universal Terrestrial Radio Access
EARFCN E-UTRA Absolute Radio Frequency Channel Number
EMC Electromagnetic Compatibility
EPC Evolved Packet Core
ESD Electrostatic discharge
EUT Equipment Under Test
FR Frequency Range
FRC Fixed Reference Channel
MB-MSR Multi-Band Multi-Standard Radio
MSR Multi-Standard Radio
NB-IoT Narrowband – Internet of Things
NR New Radio
NR-ARFCN NR Absolute Radio Frequency Channel Number
NTC Test Configuration for Non-contiguous operation
RAT Radio Access Technology
RF Radio frequency
rms root mean square
TC Test Configuration
UARFCN UTRA Absolute Radio Frequency Channel Number
UTRA Universal Terrestrial Radio Access

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4 Test conditions
4.1 General
The equipment shall be tested in normal test environment defined in base station conformance testing specification
TS 37.141 [11]. The test conditions shall be recorded in the test report.
For a EUT which contains more than one BS, it is sufficient to perform tests relating to each type of port of each
representative type of the BS forming part of the EUT. For an MSR BS or other BS supporting more than one RAT,
tests shall be performed with RATs activated according to the test configuration in subclause 4.5. Tests shall be
performed relating to each type of port, and need not be repeated for each RAT if operating RATs are assessed
simultaneously during the test. For other BS supporting more than one RAT however (other than MSR BS), tests
relating to the antenna port(s) shall always be performed for each supported RAT.
For BS capable of multi-band operation, the requirements in the present document apply for each supported operating
band unless otherwise stated. Operating bands and RATs shall be activated according to the test configuration in
subclause 4.5. Tests shall be performed relating to each type of port and all RATs per band shall be assessed during the
tests.
The manufacturer shall declare the supported operating band(s) according to subclause 4.4 of TS 37.141 [11].
Requirements apply only for the declared operating band and corresponding Band Category.
The manufacturer shall declare the supported capability set(s) according to subclause 4.7 of TS 37.141 [11]. Tests
performed on a Base Station according to a declared Capability Set cover all single RAT and multi-RAT configurations
included in the declared Capability Set.
4.2 Arrangements for establishing a communication link
The wanted RF signal nominal frequency shall be selected by setting the channel number according to the following:
- The NR Absolute Radio Frequency Channel Number (NR-ARFCN) for NR carrier,
- The Absolute Radio Frequency Channel Number (EARFCN) for E-UTRA carrier,
- The Absolute Radio Frequency Channel Number (UARFCN) for UTRA carrier,
- The Absolute Radio Frequency Channel Number (ARFCN) for GSM/EDGE carrier,
- NB-IoT Narrowband – Internet of Things
A communication link shall be set up with a suitable test system capable of evaluating the required performance criteria
(hereafter called "the test system") at the radio interface and telecommunication port/ports (the S1/Iub/Abis interface).
The test system shall be located outside of the test environment.
When the EUT is required to be in the transmit/receive mode, the following conditions shall be met:
- The EUT shall be commanded to operate at maximum rated transmit power;
- Adequate measures shall be taken to avoid the effect of the unwanted signal on the measuring equipment;
- The wanted RF input signal level shall be set to a level where the performance is not limited by the receiver
noise floor or strong signal effects.
NOTE: 15 dB above the reference sensitivity level has been used as an example of the wanted input signal level
in UTRA TDD, UTRA FDD, E-UTRA or NB-IoT EMC specifications for establishing a stable
communication link. The RAT-specific reference sensitivity levels are specified in:
- TS 25.142 [8] for UTRA TDD,
- TS 25.141 [7] for UTRA FDD,
- TS 36.141 [9] for E-UTRA or for NB-IoT,
ETSI
3GPP TS 37.113 version 15.8.0 Release 15 13 ETSI TS 137 113 V15.8.0 (2020-01)
- TS 38.141-1 [36] for NR.
- For GSM/EDGE the wanted receiver input signal level shall be set to a nominal value of -47 dBm.
For immunity tests subclause 4.3 shall additionally apply.
4.2.1 Multiple enclosure BS solution
For a BS with multiple enclosures, the BS part with Radio digital unit and the Radio unit may be tested separately.
Communication link shall be set up in the same way as if they are in single BS enclosure. The Radio Digital unit and
the Radio unit shall communicate over an interface enabling establishment of a communication link.
4.3 Narrow band responses on receivers
Responses on receivers or duplex transceivers occurring during the immunity test at discrete frequencies which are
narrow band responses (spurious responses), are identified by the following method:
- if during an immunity test the quantity being monitored goes outside the specified tolerances (clause 6), it is
necessary to establish whether the deviation is due to a narrow band response or to a wide band (EMC)
phenomenon. Therefore, the test shall be repeated with the unwanted signal frequency first increased, and then
, where:
decreased by an offset foffset
- For E-UTRA or for NR, f = 2 x BW , where BW is the channel bandwidth as defined in
offset Channel Channel
TS 36.104 [9] for E-UTRA, or in TS 38.104 [35] for NR;
- For UTRA, f = 10 MHz
offset
- For GSM/EDGE
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