SIST EN 301 908-3 V15.1.1:2024

ETSI EN 301 908-3 V15.1.1 (2024-05)

HARMONISED EUROPEAN STANDARD
IMT cellular networks;
Harmonised Standard for access to radio spectrum;
Part 3: CDMA Direct Spread (UTRA FDD)
Base Stations (BS)
Release 15
2 ETSI EN 301 908-3 V15.1.1 (2024-05)

Reference
REN/MSG-TFES-15-3
Keywords
3G, 3GPP, cellular, digital, E-UTRA, IMT, IMT-
2000, IMT-Advanced, mobile, radio, regulation,
UMTS, UTRA, WCDMA
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ETSI
3 ETSI EN 301 908-3 V15.1.1 (2024-05)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 7
Introduction . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 9
3 Definition of terms, symbols and abbreviations . 10
3.1 Terms . 10
3.2 Symbols . 12
3.3 Abbreviations . 14
4 Technical requirements specifications . 15
4.1 Environmental profile . 15
4.2 Conformance requirements . 15
4.2.1 Introduction. 15
4.2.2 Spectrum emissions mask . 19
4.2.2.1 Definition . 19
4.2.2.2 Limit . 19
4.2.2.3 Conformance . 25
4.2.3 Adjacent Channel Leakage power Ratio (ACLR) . 25
4.2.3.1 Definition . 25
4.2.3.2 Limits . 25
4.2.3.2.1 General . 25
4.2.3.2.2 Absolute limits . 25
4.2.3.2.3 Relative limits . 26
4.2.3.3 Conformance . 27
4.2.4 Transmitter spurious emis sions . 27
4.2.4.1 Definition . 27
4.2.4.2 Limits . 28
4.2.4.2.1 General spurious emissions limits . 28
4.2.4.2.2 Co-existence with other systems . 28
4.2.4.2.3 Void. . 31
4.2.4.2.4 Protection of the BS receiver of own or different BS . 31
4.2.4.2.5 Co-existence with Home BS operating in other bands . 32
4.2.4.3 Conformance . 32
4.2.5 Base Station maximum output power . 32
4.2.5.1 Definition . 32
4.2.5.2 Limit . 32
4.2.5.3 Conformance . 32
4.2.6 Transmitter intermodulation . 33
4.2.6.1 Definition . 33
4.2.6.2 Limit . 33
4.2.6.3 Conformance . 34
4.2.7 Receiver spurious emissions . 34
4.2.7.1 Definition . 34
4.2.7.2 Limit . 34
4.2.7.3 Conformance . 34
4.2.8 Blocking characteristics . 35
4.2.8.1 Definition . 35
4.2.8.2 Limit . 35
4.2.8.3 Conformance . 39
4.2.9 Receiver intermodulation characteristics . 39
4.2.9.1 Definition . 39
ETSI
4 ETSI EN 301 908-3 V15.1.1 (2024-05)
4.2.9.2 Limit . 39
4.2.9.3 Conformance . 41
4.2.10 Receiver adjacent channel selectivity . 41
4.2.10.1 Definition . 41
4.2.10.2 Limit . 41
4.2.10.3 Conformance . 42
4.2.11 Home BS output power for adjacent channel protection . 42
4.2.11.1 Definition . 42
4.2.11.2 Limit . 42
4.2.11.3 Conformance . 42
4.2.12 Reference sensitivity level . 43
4.2.12.1 Definition . 43
4.2.12.2 Limit . 43
4.2.12.3 Conformance . 43
5 Testing for compliance with technical requirements . 43
5.1 Environmental conditions for testing . 43
5.2 Interpretation of measurement results . 43
5.3 Essential radio test suites . 43
5.3.0 Introduction. 43
5.3.1 Spectrum emission mask (SEM) . 44
5.3.1.0 General . 44
5.3.1.1 Initial conditions . 44
5.3.1.2 Procedures . 44
5.3.1.3 Test requirement . 45
5.3.2 Adjacent Channel Leakage power Ratio (ACLR) . 45
5.3.2.1 Initial conditions . 45
5.3.2.2 Procedure . 45
5.3.2.3 Test requirement . 46
5.3.3 Transmitter spurious emis sions . 46
5.3.3.0 General . 46
5.3.3.1 Initial conditions . 46
5.3.3.2 Procedure . 46
5.3.3.3 Test requirement . 47
5.3.4 Base Station maximum output power . 47
5.3.4.0 General . 47
5.3.4.1 Initial conditions . 47
5.3.4.2 Procedure . 47
5.3.4.3 Test requirement . 48
5.3.5 Transmit intermodulation . 48
5.3.5.0 General . 48
5.3.5.1 Initial conditions . 48
5.3.5.2 Procedures . 48
5.3.5.3 Test requirement . 49
5.3.6 Receiver spurious emissions . 49
5.3.6.0 General . 49
5.3.6.1 Initial conditions . 49
5.3.6.2 Procedure . 50
5.3.6.3 Test requirement . 50
5.3.7 Blocking characteristics . 50
5.3.7.0 General . 50
5.3.7.1 Initial conditions . 50
5.3.7.2 Procedure . 51
5.3.7.3 Test requirement . 52
5.3.8 Receiver intermodulation characteristics . 52
5.3.8.0 General . 52
5.3.8.1 Initial conditions . 52
5.3.8.2 Procedures . 52
5.3.8.3 Test requirement . 53
5.3.9 Receiver adjacent channel selectivity (ACS) . 53
5.3.9.0 General . 53
5.3.9.1 Initial conditions . 53
ETSI
5 ETSI EN 301 908-3 V15.1.1 (2024-05)
5.3.9.2 Procedure . 53
5.3.9.3 Test requirement . 54
5.3.10 Home BS output power for adjacent channel protection . 54
5.3.10.1 Initial conditions . 54
5.3.10.2 Procedure . 54
5.3.10.3 Test requirement . 54
5.3.11 Reference sensitivity level . 55
5.3.11.0 General . 55
5.3.11.1 Initial Conditions . 55
5.3.11.2 Procedure . 55
5.3.11.3 Test requirement . 55
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 56
Annex B (normative): Base Station configurations . 58
B.1 Receive configurations . 58
B.1.1 General . 58
B.1.2 Receiver diversity . 58
B.2 Duplexers . 58
B.3 Power supply options . 58
B.4 Ancillary RF amplifiers . 59
B.5 BS using antenna arrays . 59
B.5.0 Introduction . 59
B.5.1 Receiver tests . 60
B.5.2 Transmitter tests . 60
B.6 Transmit configurations . 60
B.6.1 General . 60
B.6.2 Diversity and MIMO transmission . 61
B.7 BS with integrated Iuant BS modem . 61
Annex C (informative): Maximum Measurement Uncertainty . 62
Annex D (informative): Checklist . 64
Annex E (informative): Bibliography . 65
Annex F (informative): Change history . 66
History . 67

ETSI
6 ETSI EN 301 908-3 V15.1.1 (2024-05)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations
pertaining to these essential IPRs, if any, are publicly available for ETSI members and non-members, and can be
found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to
ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the
ETSI Web server (https://ipr.etsi.org/).
Pursuant to the ETSI Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,
including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not
referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become,
essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its

Members. 3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and of the 3GPP
Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of the ®
oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.
Foreword
This Harmonised European Standard (EN) has been produced by ETSI Technical Committee Mobile Standards Group
(MSG).
For non EU countries, the present document may be used for regulatory (Type Approval) purposes.
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.1] to
provide one voluntary means of conforming to the essential requirements of Directive 2014/53/EU on the harmonisation
of the laws of the Member States relating to the making available on the market of radio equipment and repealing
Directive 1999/5/EC [i.2].
Once the present document is cited in the Official Journal of the European Union under that Directive, compliance with
the normative clauses of the present document given in table A-1 confers, within the limits of the scope of the present
document, a presumption of conformity with the corresponding essential requirements of that Directive and associated
EFTA regulations.
The present document is part 3 of a multi-part deliverable. Full details of the entire series can be found in part 1 [i.5].

National transposition dates
Date of adoption of this EN: 7 May 2024
Date of latest announcement of this EN (doa): 31 August 2024
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 28 February 2025
Date of withdrawal of any conflicting National Standard (dow): 28 February 2026

ETSI
7 ETSI EN 301 908-3 V15.1.1 (2024-05)
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
Introduction
The present document is part of a set of standards developed by ETSI that are designed to fit in a modular structure to
cover radio equipment within the scope of the Radio Equipment Directive [i.2]. The present document is produced
following the guidance in ETSI EG 203 336 [i.3] as applicable.

ETSI
8 ETSI EN 301 908-3 V15.1.1 (2024-05)
1 Scope
The present document specifies technical characteristics and methods of measurements for types of radio equipment:
• Base Stations for IMT 2000 CDMA Direct Spread (UTRA FDD).
These radio equipment types are capable of operating in whole or any part of the operating band(s) given in table 1-1.
Table 1-1: UTRA FDD Base Station operating bands
UTRA FDD Direction of UTRA FDD Base Station operating bands Related EC/ECC
band transmission decision
I Transmit 2 110 MHz to 2 170 MHz [i.8] and [i.9]
Receive 1 920 MHz to 1 980 MHz
III Transmit 1 805 MHz to 1 880 MHz [i.10] and [i.11]
Receive 1 710 MHz to 1 785 MHz
VII Transmit 2 620 MHz to 2 690 MHz [i.12] and [i.13]
Receive 2 500 MHz to 2 570 MHz
VIII Transmit 925 MHz to 960 MHz [i.10] and [i.11]
Receive 880 MHz to 915 MHz
XX Transmit 791 MHz to 821 MHz [i.14] and [i.15]
Receive 832 MHz to 862 MHz
XXII Transmit 3 510 MHz to 3 590 MHz [i.16] and [i.17]
Receive 3 410 MHz to 3 490 MHz
XXXII Transmit 1 452 MHz to 1 496 MHz [i.18] and [i.19]
(see note) Receive -
NOTE: Radio equipment in band XXXII only operates in transmit mode (downlink only). Only transmitter
requirements are applicable.
The present document covers conducted requirements for UTRA Base Stations for 3GPP Release 15. Additionally, it
includes requirements for selected operating bands from 3GPP Releases 16 and 17.
NOTE: The relationship between the present document and essential requirements of article 3.2 of Directive
2014/53/EU [i.2] is given in annex A.
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or non-
specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI TS 125 141 (V15.4.0) (04-2019): "Universal Mobile Telecommunications System (UMTS);
Base Station (BS) conformance testing (FDD) (3GPP TS 25.141 version 15.4.0 Release 15)".
[2] ETSI TS 145 004 (V15.0.0) (07-2018): "Digital cellular telecommunications system (Phase 2+)
(GSM); GSM/ EDGE Modulation (3GPP TS 45.004 version 15.0.0 Release 15)".
[3] ETSI TS 125 104 (V15.5.0) (04-2019): "Universal Mobile Telecommunications System (UMTS);
Base Station (BS) radio transmission and reception (FDD) (3GPP TS 25.104 version 15.5.0
Release 15)".
ETSI
9 ETSI EN 301 908-3 V15.1.1 (2024-05)
[4] ETSI EN 301 908-18 (V15.1.1) (09-2021): "IMT cellular networks; Harmonised Standard for
access to radio spectrum; Part 18: E-UTRA, UTRA and GSM/EDGE Multi-Standard Radio
(MSR) Base Station (BS) Release 15".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] Commission implementing decision C(2015) 5376 final of 4.8.2015 on a standardisation request to
the European Committee for Electrotechnical Standardisation and to the European
Telecommunications Standards Institute as regards radio equipment in support of Directive
2014/53/EU of the European Parliament and of the Council.
[i.2] Directive 2014/53/EU of the European parliament and of the council of 16 April 2014 on the
harmonisation of the laws of the Member States relating to the making available on the market of
radio equipment and repealing Directive 1999/5/EC.
[i.3] ETSI EG 203 336 (V1.1.1) (08-2015): "Electromagnetic compatibility and Radio spectrum
Matters (ERM); Guide for the selection of technical parameters for the production of Harmonised
Standards covering article 3.1(b) and article 3.2 of Directive 2014/53/EU".
[i.4] Void.
[i.5] ETSI EN 301 908-1 (V15.1.1) (09-2021): "IMT cellular networks; Harmonised Standard for
access to radio spectrum; Part 1: Introduction and common requirements Release 15".
[i.6] ETSI TR 100 028 (all parts) (V1.4.1) (12-2001): "Electromagnetic compatibility and Radio
spectrum Matters (ERM); Uncertainties in the measurement of mobile radio equipment
characteristics".
[i.7] Recommendation ITU-R SM.329-12 (09-2012): "Unwanted emissions in the spurious domain".
[i.8] Commission Implementing Decision (EU) 2020/667 of 6 May 2020 amending Decision
2012/688/EU as regards an update of relevant technical conditions applicable to the frequency
bands 1 920-1 980 MHz and 2 110-2 170 MHz.
[i.9] ECC Decision (06)01: "The harmonised utilisation of the bands1920-1980 MHz and
2110-2170 MHz for mobile/fixed communications networks (MFCN), including terrestrial IMT
systems", Approved 24 March 2006, Amended 8 March 2019.
[i.10] Commission Implementing Decision (EU) 2022/173 of 7 February 2022 on the harmonisation of
the 900 MHz and 1800 MHz frequency bands for terrestrial systems capable of providing
electronic communications services in the Union and repealing Decision 2009/766/EC.
[i.11] ECC Decision (06)13: "Designation of the bands 880-915 MHz, 925-960 MHz, 1710-1785 MHz
and 1805-1880 MHz for terrestrial UMTS, LTE, WiMAX and IoT cellular systems", Approved
01 December 2006, Amended 8 March 2019.
[i.12] Commission Implementing Decision (EU) 2020/636 of 8 May 2020 amending Decision
2008/477/EC as regards an update of relevant technical conditions applicable to the
2 500-2 690 MHz frequency band.
[i.13] ECC Decision 05(05): "Harmonised utilization of spectrum for Mobile/Fixed Communications
Networks (MFCN) operating within the band 2 500-2 690 MHz", Approved 18 March 2005,
Amended 05 July 2019.
ETSI
10 ETSI EN 301 908-3 V15.1.1 (2024-05)
[i.14] Commission Decision 2010/267/EU of 6 May 2010 on harmonised technical conditions of use in
the 790-862 MHz frequency band for terrestrial systems capable of providing electronic
communications services in the European Union.
[i.15] ECC Decision (09)03: "Harmonised conditions for mobile/fixed communications networks
(MFCN) operating in the band 790 - 862 MHz", 30 October 2009.
[i.16] Commission implementing Decision (EU) 2019/235 of 24 January 2019 on amending Decision
2008/411/EC as regards an update of relevant technical conditions applicable to the
3 400-3 800 MHz frequency band.
[i.17] ECC Decision 11(06): "Harmonised frequency arrangements and least restrictive technical
conditions (LRTC) for mobile/fixed communications networks (MFCN) operating in the band
3400-3800 MHz", Approved 09 December 2011, Amended 26 October 2018.
[i.18] Commission Implementing Decision (EU) 2018/661 of 26 April 2018 amending Implementing
Decision (EU) 2015/750 on the harmonisation of the 1452-1492 MHz frequency band for
terrestrial systems capable of providing electronic communications services in the Union as
regards its extension in the harmonised 1427-1452 MHz and 1492-1517 MHz frequency bands.
[i.19] ECC Decision (13)03: "The harmonised use of the frequency band 1 452-1 492 MHz for
Mobile/Fixed Communications Networks Supplemental Downlink (MFCN SDL)".
[i.20] ETSI TR 103 877 (V1.1.1): "Task Force for European Standards for IMT-2000 (MSG); Technical
Parameter selection in ETSI EN 301 908 Base Station (BS) Harmonised Standards".
[i.21] ETSI TS 103 807 (V1.1.1) (06-2021): "Mobile Standards Group (MSG); IMT Cellular Networks
Base Stations (BS) Additional Regulatory Requirements".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
ancillary equipment: equipment (apparatus) used in connection with a Base Station
NOTE: This is considered as an ancillary equipment (apparatus) if:
 the equipment is intended for use in conjunction with a Base Station to provide additional
operational and/or control features to the radio equipment (e.g. to extend control to another position
or location);
 the equipment cannot be used on a standalone basis to provide user functions independently of a
BS; and
 the BS 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).
Base Station (BS) class: classification of BS according to its intended use
NOTE: There are three BS classes in the present document: wide area Base Station, medium range Base Station
and local Area Base Station.
BS receiver: composite receiver function of a BS receiving in an operating band
BS RF Bandwidth: RF bandwidth in which a base station transmits and/or receives single or multiple carrier(s) within
a supported operating band
NOTE: In single carrier operation, the Base Station RF Bandwidth is equal to the channel bandwidth.
ETSI
11 ETSI EN 301 908-3 V15.1.1 (2024-05)
BS RF bandwidth edge: frequency of one of the edges of the BS RF Bandwidth
NOTE: Base Station RF Bandwidth edges are separated by the Base Station RF Bandwidth.
channel bandwidth: RF bandwidth supporting a single UTRA RF carrier
NOTE: The channel bandwidth is measured in MHz and is used as a reference for transmitter and receiver RF
requirements.
chip rate: rate of "chips" (modulated symbols after spreading) per second
NOTE: The UTRA FDD chip rate is 3,84 Mchip/s.
contiguous carriers: set of two or more carriers configured in a spectrum block where there are no RF requirements
based on co-existence for un-coordinated operation within the spectrum block
contiguous spectrum: spectrum consisting of a contiguous block of spectrum with no sub-block gap(s)
downlink operating band: part of the operating band designated for downlink (BS transmit)
environmental profile: range of environmental conditions under which equipment, within the scope of the present
document, is required to comply with the provisions of the present document
home Base Station: Base Station characterized by requirements derived from femtocell scenarios
inter-band gap: frequency gap between two supported consecutive operating bands
inter RF bandwidth gap: frequency gap between two consecutive BS RF Bandwidths that are placed within two
supported operating bands
Local Area Base Station: Base Station characterized by requirements derived from picocell scenarios with a BS to UE
minimum coupling loss equal to 45 dB
lower sub-block edge: frequency at the lower edge of one sub-block
NOTE: It is used as a frequency reference point for both transmitter and receiver requirements.
maximum BS RF bandwidth: maximum RF bandwidth supported by a BS within each supported operating band
maximum output power per carrier: mean power level per carrier of the Base Station measured at the antenna
connector in a specified reference condition
maximum radio bandwidth: maximum frequency difference between the upper edge of the highest used carrier and
the lower edge of the lowest used carrier
mean power: power (transmitted or received) in a bandwidth of at least (1 + α) times the chip rate of the radio access
mod, when applied to a WCDMA-modulated signal
NOTE 1: The period of measurement is at least one timeslot unless otherwise stated.
NOTE 2: α = 0,22 is the roll-off factor of the WCDMA signal.
medium range Base Station: Base Station characterized by requirements derived from microcell scenarios with a BS
to UE minimum coupling loss equal to 53 dB
MIMO mode: downlink MIMO configuration with two transmit antennas
MIMO mode with four transmit antennas: downlink MIMO configuration with four transmit antennas
minimum coupling loss: minimum distance loss including antenna gain, measured between antenna connectors
multi-band Base Station: 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
operating band (which is not a sub-band or superseding-band of another supported operating band) than the other
carrier(s)
ETSI
12 ETSI EN 301 908-3 V15.1.1 (2024-05)
multi-band receiver: receiver characterized by the ability to process two or more carriers in common active RF
components simultaneously, where at least one carrier is configured at a different operating band (which is not a
sub-band or
...

SLOVENSKI STANDARD
01-oktober-2024
Celična omrežja IMT - Harmonizirani standard za dostop do radijskega spektra - 3.
del: Bazne postaje (BS) s CDMA z neposrednim razprševanjem (Direct Spread
UTRA FDD), izdaja 15
IMT cellular networks - Harmonised Standard for access to radio spectrum - Part 3:
CDMA Direct Spread (UTRA FDD) Base Stations (BS) Release 15
Ta slovenski standard je istoveten z: ETSI EN 301 908-3 V15.1.1 (2024-05)
ICS:
33.060.99 Druga oprema za radijske Other equipment for
komunikacije radiocommunications
33.070.99 Druge mobilne storitve Other mobile services
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

ETSI EN 301 908-3 V15.1.1 (2024-05)

HARMONISED EUROPEAN STANDARD
IMT cellular networks;
Harmonised Standard for access to radio spectrum;
Part 3: CDMA Direct Spread (UTRA FDD)
Base Stations (BS)
Release 15
2 ETSI EN 301 908-3 V15.1.1 (2024-05)

Reference
REN/MSG-TFES-15-3
Keywords
3G, 3GPP, cellular, digital, E-UTRA, IMT, IMT-
2000, IMT-Advanced, mobile, radio, regulation,
UMTS, UTRA, WCDMA
ETSI
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Siret N° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871

Important notice
The present document can be downloaded from:
https://www.etsi.org/standards-search
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
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existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI
deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
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If you find errors in the present document, please send your comment to one of the following services:
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If you find a security vulnerability in the present document, please report it through our
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ETSI
3 ETSI EN 301 908-3 V15.1.1 (2024-05)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 7
Introduction . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 9
3 Definition of terms, symbols and abbreviations . 10
3.1 Terms . 10
3.2 Symbols . 12
3.3 Abbreviations . 14
4 Technical requirements specifications . 15
4.1 Environmental profile . 15
4.2 Conformance requirements . 15
4.2.1 Introduction. 15
4.2.2 Spectrum emissions mask . 19
4.2.2.1 Definition . 19
4.2.2.2 Limit . 19
4.2.2.3 Conformance . 25
4.2.3 Adjacent Channel Leakage power Ratio (ACLR) . 25
4.2.3.1 Definition . 25
4.2.3.2 Limits . 25
4.2.3.2.1 General . 25
4.2.3.2.2 Absolute limits . 25
4.2.3.2.3 Relative limits . 26
4.2.3.3 Conformance . 27
4.2.4 Transmitter spurious emis sions . 27
4.2.4.1 Definition . 27
4.2.4.2 Limits . 28
4.2.4.2.1 General spurious emissions limits . 28
4.2.4.2.2 Co-existence with other systems . 28
4.2.4.2.3 Void. . 31
4.2.4.2.4 Protection of the BS receiver of own or different BS . 31
4.2.4.2.5 Co-existence with Home BS operating in other bands . 32
4.2.4.3 Conformance . 32
4.2.5 Base Station maximum output power . 32
4.2.5.1 Definition . 32
4.2.5.2 Limit . 32
4.2.5.3 Conformance . 32
4.2.6 Transmitter intermodulation . 33
4.2.6.1 Definition . 33
4.2.6.2 Limit . 33
4.2.6.3 Conformance . 34
4.2.7 Receiver spurious emissions . 34
4.2.7.1 Definition . 34
4.2.7.2 Limit . 34
4.2.7.3 Conformance . 34
4.2.8 Blocking characteristics . 35
4.2.8.1 Definition . 35
4.2.8.2 Limit . 35
4.2.8.3 Conformance . 39
4.2.9 Receiver intermodulation characteristics . 39
4.2.9.1 Definition . 39
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4 ETSI EN 301 908-3 V15.1.1 (2024-05)
4.2.9.2 Limit . 39
4.2.9.3 Conformance . 41
4.2.10 Receiver adjacent channel selectivity . 41
4.2.10.1 Definition . 41
4.2.10.2 Limit . 41
4.2.10.3 Conformance . 42
4.2.11 Home BS output power for adjacent channel protection . 42
4.2.11.1 Definition . 42
4.2.11.2 Limit . 42
4.2.11.3 Conformance . 42
4.2.12 Reference sensitivity level . 43
4.2.12.1 Definition . 43
4.2.12.2 Limit . 43
4.2.12.3 Conformance . 43
5 Testing for compliance with technical requirements . 43
5.1 Environmental conditions for testing . 43
5.2 Interpretation of measurement results . 43
5.3 Essential radio test suites . 43
5.3.0 Introduction. 43
5.3.1 Spectrum emission mask (SEM) . 44
5.3.1.0 General . 44
5.3.1.1 Initial conditions . 44
5.3.1.2 Procedures . 44
5.3.1.3 Test requirement . 45
5.3.2 Adjacent Channel Leakage power Ratio (ACLR) . 45
5.3.2.1 Initial conditions . 45
5.3.2.2 Procedure . 45
5.3.2.3 Test requirement . 46
5.3.3 Transmitter spurious emis sions . 46
5.3.3.0 General . 46
5.3.3.1 Initial conditions . 46
5.3.3.2 Procedure . 46
5.3.3.3 Test requirement . 47
5.3.4 Base Station maximum output power . 47
5.3.4.0 General . 47
5.3.4.1 Initial conditions . 47
5.3.4.2 Procedure . 47
5.3.4.3 Test requirement . 48
5.3.5 Transmit intermodulation . 48
5.3.5.0 General . 48
5.3.5.1 Initial conditions . 48
5.3.5.2 Procedures . 48
5.3.5.3 Test requirement . 49
5.3.6 Receiver spurious emissions . 49
5.3.6.0 General . 49
5.3.6.1 Initial conditions . 49
5.3.6.2 Procedure . 50
5.3.6.3 Test requirement . 50
5.3.7 Blocking characteristics . 50
5.3.7.0 General . 50
5.3.7.1 Initial conditions . 50
5.3.7.2 Procedure . 51
5.3.7.3 Test requirement . 52
5.3.8 Receiver intermodulation characteristics . 52
5.3.8.0 General . 52
5.3.8.1 Initial conditions . 52
5.3.8.2 Procedures . 52
5.3.8.3 Test requirement . 53
5.3.9 Receiver adjacent channel selectivity (ACS) . 53
5.3.9.0 General . 53
5.3.9.1 Initial conditions . 53
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5 ETSI EN 301 908-3 V15.1.1 (2024-05)
5.3.9.2 Procedure . 53
5.3.9.3 Test requirement . 54
5.3.10 Home BS output power for adjacent channel protection . 54
5.3.10.1 Initial conditions . 54
5.3.10.2 Procedure . 54
5.3.10.3 Test requirement . 54
5.3.11 Reference sensitivity level . 55
5.3.11.0 General . 55
5.3.11.1 Initial Conditions . 55
5.3.11.2 Procedure . 55
5.3.11.3 Test requirement . 55
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 56
Annex B (normative): Base Station configurations . 58
B.1 Receive configurations . 58
B.1.1 General . 58
B.1.2 Receiver diversity . 58
B.2 Duplexers . 58
B.3 Power supply options . 58
B.4 Ancillary RF amplifiers . 59
B.5 BS using antenna arrays . 59
B.5.0 Introduction . 59
B.5.1 Receiver tests . 60
B.5.2 Transmitter tests . 60
B.6 Transmit configurations . 60
B.6.1 General . 60
B.6.2 Diversity and MIMO transmission . 61
B.7 BS with integrated Iuant BS modem . 61
Annex C (informative): Maximum Measurement Uncertainty . 62
Annex D (informative): Checklist . 64
Annex E (informative): Bibliography . 65
Annex F (informative): Change history . 66
History . 67

ETSI
6 ETSI EN 301 908-3 V15.1.1 (2024-05)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations
pertaining to these essential IPRs, if any, are publicly available for ETSI members and non-members, and can be
found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to
ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the
ETSI Web server (https://ipr.etsi.org/).
Pursuant to the ETSI Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,
including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not
referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become,
essential to the present document.
Trademarks
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ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its

Members. 3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and of the 3GPP
Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of the ®
oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.
Foreword
This Harmonised European Standard (EN) has been produced by ETSI Technical Committee Mobile Standards Group
(MSG).
For non EU countries, the present document may be used for regulatory (Type Approval) purposes.
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.1] to
provide one voluntary means of conforming to the essential requirements of Directive 2014/53/EU on the harmonisation
of the laws of the Member States relating to the making available on the market of radio equipment and repealing
Directive 1999/5/EC [i.2].
Once the present document is cited in the Official Journal of the European Union under that Directive, compliance with
the normative clauses of the present document given in table A-1 confers, within the limits of the scope of the present
document, a presumption of conformity with the corresponding essential requirements of that Directive and associated
EFTA regulations.
The present document is part 3 of a multi-part deliverable. Full details of the entire series can be found in part 1 [i.5].

National transposition dates
Date of adoption of this EN: 7 May 2024
Date of latest announcement of this EN (doa): 31 August 2024
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 28 February 2025
Date of withdrawal of any conflicting National Standard (dow): 28 February 2026

ETSI
7 ETSI EN 301 908-3 V15.1.1 (2024-05)
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
Introduction
The present document is part of a set of standards developed by ETSI that are designed to fit in a modular structure to
cover radio equipment within the scope of the Radio Equipment Directive [i.2]. The present document is produced
following the guidance in ETSI EG 203 336 [i.3] as applicable.

ETSI
8 ETSI EN 301 908-3 V15.1.1 (2024-05)
1 Scope
The present document specifies technical characteristics and methods of measurements for types of radio equipment:
• Base Stations for IMT 2000 CDMA Direct Spread (UTRA FDD).
These radio equipment types are capable of operating in whole or any part of the operating band(s) given in table 1-1.
Table 1-1: UTRA FDD Base Station operating bands
UTRA FDD Direction of UTRA FDD Base Station operating bands Related EC/ECC
band transmission decision
I Transmit 2 110 MHz to 2 170 MHz [i.8] and [i.9]
Receive 1 920 MHz to 1 980 MHz
III Transmit 1 805 MHz to 1 880 MHz [i.10] and [i.11]
Receive 1 710 MHz to 1 785 MHz
VII Transmit 2 620 MHz to 2 690 MHz [i.12] and [i.13]
Receive 2 500 MHz to 2 570 MHz
VIII Transmit 925 MHz to 960 MHz [i.10] and [i.11]
Receive 880 MHz to 915 MHz
XX Transmit 791 MHz to 821 MHz [i.14] and [i.15]
Receive 832 MHz to 862 MHz
XXII Transmit 3 510 MHz to 3 590 MHz [i.16] and [i.17]
Receive 3 410 MHz to 3 490 MHz
XXXII Transmit 1 452 MHz to 1 496 MHz [i.18] and [i.19]
(see note) Receive -
NOTE: Radio equipment in band XXXII only operates in transmit mode (downlink only). Only transmitter
requirements are applicable.
The present document covers conducted requirements for UTRA Base Stations for 3GPP Release 15. Additionally, it
includes requirements for selected operating bands from 3GPP Releases 16 and 17.
NOTE: The relationship between the present document and essential requirements of article 3.2 of Directive
2014/53/EU [i.2] is given in annex A.
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or non-
specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI TS 125 141 (V15.4.0) (04-2019): "Universal Mobile Telecommunications System (UMTS);
Base Station (BS) conformance testing (FDD) (3GPP TS 25.141 version 15.4.0 Release 15)".
[2] ETSI TS 145 004 (V15.0.0) (07-2018): "Digital cellular telecommunications system (Phase 2+)
(GSM); GSM/ EDGE Modulation (3GPP TS 45.004 version 15.0.0 Release 15)".
[3] ETSI TS 125 104 (V15.5.0) (04-2019): "Universal Mobile Telecommunications System (UMTS);
Base Station (BS) radio transmission and reception (FDD) (3GPP TS 25.104 version 15.5.0
Release 15)".
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9 ETSI EN 301 908-3 V15.1.1 (2024-05)
[4] ETSI EN 301 908-18 (V15.1.1) (09-2021): "IMT cellular networks; Harmonised Standard for
access to radio spectrum; Part 18: E-UTRA, UTRA and GSM/EDGE Multi-Standard Radio
(MSR) Base Station (BS) Release 15".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] Commission implementing decision C(2015) 5376 final of 4.8.2015 on a standardisation request to
the European Committee for Electrotechnical Standardisation and to the European
Telecommunications Standards Institute as regards radio equipment in support of Directive
2014/53/EU of the European Parliament and of the Council.
[i.2] Directive 2014/53/EU of the European parliament and of the council of 16 April 2014 on the
harmonisation of the laws of the Member States relating to the making available on the market of
radio equipment and repealing Directive 1999/5/EC.
[i.3] ETSI EG 203 336 (V1.1.1) (08-2015): "Electromagnetic compatibility and Radio spectrum
Matters (ERM); Guide for the selection of technical parameters for the production of Harmonised
Standards covering article 3.1(b) and article 3.2 of Directive 2014/53/EU".
[i.4] Void.
[i.5] ETSI EN 301 908-1 (V15.1.1) (09-2021): "IMT cellular networks; Harmonised Standard for
access to radio spectrum; Part 1: Introduction and common requirements Release 15".
[i.6] ETSI TR 100 028 (all parts) (V1.4.1) (12-2001): "Electromagnetic compatibility and Radio
spectrum Matters (ERM); Uncertainties in the measurement of mobile radio equipment
characteristics".
[i.7] Recommendation ITU-R SM.329-12 (09-2012): "Unwanted emissions in the spurious domain".
[i.8] Commission Implementing Decision (EU) 2020/667 of 6 May 2020 amending Decision
2012/688/EU as regards an update of relevant technical conditions applicable to the frequency
bands 1 920-1 980 MHz and 2 110-2 170 MHz.
[i.9] ECC Decision (06)01: "The harmonised utilisation of the bands1920-1980 MHz and
2110-2170 MHz for mobile/fixed communications networks (MFCN), including terrestrial IMT
systems", Approved 24 March 2006, Amended 8 March 2019.
[i.10] Commission Implementing Decision (EU) 2022/173 of 7 February 2022 on the harmonisation of
the 900 MHz and 1800 MHz frequency bands for terrestrial systems capable of providing
electronic communications services in the Union and repealing Decision 2009/766/EC.
[i.11] ECC Decision (06)13: "Designation of the bands 880-915 MHz, 925-960 MHz, 1710-1785 MHz
and 1805-1880 MHz for terrestrial UMTS, LTE, WiMAX and IoT cellular systems", Approved
01 December 2006, Amended 8 March 2019.
[i.12] Commission Implementing Decision (EU) 2020/636 of 8 May 2020 amending Decision
2008/477/EC as regards an update of relevant technical conditions applicable to the
2 500-2 690 MHz frequency band.
[i.13] ECC Decision 05(05): "Harmonised utilization of spectrum for Mobile/Fixed Communications
Networks (MFCN) operating within the band 2 500-2 690 MHz", Approved 18 March 2005,
Amended 05 July 2019.
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10 ETSI EN 301 908-3 V15.1.1 (2024-05)
[i.14] Commission Decision 2010/267/EU of 6 May 2010 on harmonised technical conditions of use in
the 790-862 MHz frequency band for terrestrial systems capable of providing electronic
communications services in the European Union.
[i.15] ECC Decision (09)03: "Harmonised conditions for mobile/fixed communications networks
(MFCN) operating in the band 790 - 862 MHz", 30 October 2009.
[i.16] Commission implementing Decision (EU) 2019/235 of 24 January 2019 on amending Decision
2008/411/EC as regards an update of relevant technical conditions applicable to the
3 400-3 800 MHz frequency band.
[i.17] ECC Decision 11(06): "Harmonised frequency arrangements and least restrictive technical
conditions (LRTC) for mobile/fixed communications networks (MFCN) operating in the band
3400-3800 MHz", Approved 09 December 2011, Amended 26 October 2018.
[i.18] Commission Implementing Decision (EU) 2018/661 of 26 April 2018 amending Implementing
Decision (EU) 2015/750 on the harmonisation of the 1452-1492 MHz frequency band for
terrestrial systems capable of providing electronic communications services in the Union as
regards its extension in the harmonised 1427-1452 MHz and 1492-1517 MHz frequency bands.
[i.19] ECC Decision (13)03: "The harmonised use of the frequency band 1 452-1 492 MHz for
Mobile/Fixed Communications Networks Supplemental Downlink (MFCN SDL)".
[i.20] ETSI TR 103 877 (V1.1.1): "Task Force for European Standards for IMT-2000 (MSG); Technical
Parameter selection in ETSI EN 301 908 Base Station (BS) Harmonised Standards".
[i.21] ETSI TS 103 807 (V1.1.1) (06-2021): "Mobile Standards Group (MSG); IMT Cellular Networks
Base Stations (BS) Additional Regulatory Requirements".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
ancillary equipment: equipment (apparatus) used in connection with a Base Station
NOTE: This is considered as an ancillary equipment (apparatus) if:
 the equipment is intended for use in conjunction with a Base Station to provide additional
operational and/or control features to the radio equipment (e.g. to extend control to another position
or location);
 the equipment cannot be used on a standalone basis to provide user functions independently of a
BS; and
 the BS 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).
Base Station (BS) class: classification of BS according to its intended use
NOTE: There are three BS classes in the present document: wide area Base Station, medium range Base Station
and local Area Base Station.
BS receiver: composite receiver function of a BS receiving in an operating band
BS RF Bandwidth: RF bandwidth in which a base station transmits and/or receives single or multiple carrier(s) within
a supported operating band
NOTE: In single carrier operation, the Base Station RF Bandwidth is equal to the channel bandwidth.
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11 ETSI EN 301 908-3 V15.1.1 (2024-05)
BS RF bandwidth edge: frequency of one of the edges of the BS RF Bandwidth
NOTE: Base Station RF Bandwidth edges are separated by the Base Station RF Bandwidth.
channel bandwidth: RF bandwidth supporting a single UTRA RF carrier
NOTE: The channel bandwidth is measured in MHz and is used as a reference for transmitter and receiver RF
requirements.
chip rate: rate of "chips" (modulated symbols after spreading) per second
NOTE: The UTRA FDD chip rate is 3,84 Mchip/s.
contiguous carriers: set of two or more carriers configured in a spectrum block where there are no RF requirements
based on co-existence for un-coordinated operation within the spectrum block
contiguous spectrum: spectrum consisting of a contiguous block of spectrum with no sub-block gap(s)
downlink operating band: part of the operating band designated for downlink (BS transmit)
environmental profile: range of environmental conditions under which equipment, within the scope of the present
document, is required to comply with the provisions of the present document
home Base Station: Base Station characterized by requirements derived from femtocell scenarios
inter-band gap: frequency gap between two supported consecutive operating bands
inter RF bandwidth gap: frequency gap between two consecutive BS RF Bandwidths that are placed within two
supported operating bands
Local Area Base Station: Base Station characterized by requirements derived from picocell scenarios with a BS to UE
minimum coupling loss equal to 45 dB
lower sub-block edge: frequency at the lower edge of one sub-block
NOTE: It is used as a frequency reference point for both transmitter and receiver requirements.
maximum BS RF bandwidth: maximum RF bandwidth supported by a BS within each supported operating band
maximum output power per carrier: mean power level per carrier of the Base Station measured at the antenna
connector in a specified reference condition
maximum radio bandwidth: maximum frequency difference between the upper edge of the highest used carrier and
the lower edge of the lowest used carrier
mean power: power (transmitted or received) in a bandwidth of at least (1 + α) times the chip rate of the radio access
mod, when applied to a WCDMA-modulated signal
NOTE 1: The per
...