SIST EN 301 908-18 V17.1.1:2025

HARMONISED EUROPEAN STANDARD
IMT cellular networks;
Harmonised Standard for access to radio spectrum;
Part 18: NR, E-UTRA, UTRA and GSM/EDGE
Multi-Standard Radio (MSR) Base Station (BS)
Release 17
2 ETSI EN 301 908-18 V17.1.1 (2025-02)

Reference
REN/MSG-TFES-1502
Keywords
3G, 3GPP, 5G, cellular, digital, EDGE, E-UTRA,
GSM, IMT, IMT-2000, IMT-2020, IMT-Advanced,
LTE, LTE-Advanced, mobile, MSR, NR, radio,
regulation, UMTS, UTRA, WCDMA
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ETSI
3 ETSI EN 301 908-18 V17.1.1 (2025-02)
Contents
Intellectual Property Rights . 7
Foreword . 7
Modal verbs terminology . 8
Introduction . 8
1 Scope . 9
2 References . 11
2.1 Normative references . 11
2.2 Informative references . 12
3 Definition of terms, symbols and abbreviations . 14
3.1 Terms . 14
3.2 Symbols . 16
3.3 Abbreviations . 17
4 Technical requirements specifications . 19
4.1 Environmental profile . 19
4.2 Conformance requirements . 19
4.2.1 Introduction. 19
4.2.2 Operating band unwanted emissions . 21
4.2.2.1 Definition and applicability . 21
4.2.2.2 Limits . 21
4.2.2.2.1 Limits for Band Categories 1 and 3 . 21
4.2.2.2.2 Limits for Band Category 2 . 32
4.2.2.2.3 Limits for GSM/EDGE single-RAT operation . 40
4.2.2.2.4 Void . 40
4.2.2.2.5 Void . 40
4.2.2.2.6 Void . 40
4.2.2.2.7 Additional limits for operation in bands 50 and 75 within 1 432 to 1 452 MHz, and in bands
51 and 76 . 40
4.2.2.2.8 Additional limits for operation in band 43 for co-existence with FSS/FS . 41
4.2.2.2.9 Additional limits for operation in band 40 . 41
4.2.2.2.10 Additional limits for operation in bands 31 and 72 . 42
4.2.2.2.11 Additional limits for operation in bands 32, 50 and 75 . 43
4.2.2.3 Conformance . 44
4.2.3 Adjacent Channel Leakage power Ratio (ACLR) . 44
4.2.3.1 Definition and applicability . 44
4.2.3.2 Limits . 44
4.2.3.2.1 E-UTRA limits . 44
4.2.3.2.2 UTRA FDD limits . 46
4.2.3.2.3 Void . 46
4.2.3.2.4 Cumulative ACLR requirement in non-contiguous spectrum . 46
4.2.3.2.5 NB-IoT test requirement . 47
4.2.3.2.6 NR test requirement . 48
4.2.3.3 Conformance . 49
4.2.4 Transmitter spurious emis sions . 49
4.2.4.1 Definition and applicability . 49
4.2.4.2 Limits . 50
4.2.4.2.1 Spurious emissions . 50
4.2.4.2.2 Void . 50
4.2.4.2.3 Co-existence with other systems . 50
4.2.4.2.4 Protection of the BS receiver of own or different BS . 53
4.2.4.3 Conformance . 53
4.2.5 Base station output power . 53
4.2.5.1 Definition and applicability . 53
4.2.5.2 Limits . 54
4.2.5.3 Conformance . 54
ETSI
4 ETSI EN 301 908-18 V17.1.1 (2025-02)
4.2.6 Transmit intermodulation . 54
4.2.6.1 Definition and applicability . 54
4.2.6.2 Limits . 55
4.2.6.2.1 General limits . 55
4.2.6.2.2 Additional limits (BC1 and BC2) . 55
4.2.6.2.3 Void . 56
4.2.6.3 Conformance . 56
4.2.7 Receiver spurious emissions . 56
4.2.7.1 Definition and applicability . 56
4.2.7.2 Limits . 56
4.2.7.2.1 General limits . 56
4.2.7.2.2 Additional limits for BC2 . 57
4.2.7.3 Conformance . 57
4.2.8 In-band blocking . 57
4.2.8.1 Definition and applicability . 57
4.2.8.2 Limits . 58
4.2.8.2.1 General limits . 58
4.2.8.2.2 Void . 59
4.2.8.3 Conformance . 59
4.2.9 Out-of-band blocking . 59
4.2.9.1 Definition and applicability . 59
4.2.9.2 Limits . 59
4.2.9.3 Conformance . 60
4.2.10 Receiver intermodulation characteristics . 60
4.2.10.1 Definition and applicability . 60
4.2.10.2 Limits . 61
4.2.10.2.1 General intermodulation limits . 61
4.2.10.2.2 General narrowband intermodulation limits . 63
4.2.10.2.3 Additional narrowband intermodulation limits for GSM/EDGE . 65
4.2.10.3 Conformance . 65
4.2.11 Narrowband blocking . 65
4.2.11.1 Definition and applicability . 65
4.2.11.2 Limits . 66
4.2.11.2.1 General limits . 66
4.2.11.2.2 Additional limits for GSM/EDGE . 67
4.2.11.2.3 GSM/EDGE limits for AM suppression . 67
4.2.11.3 Conformance . 67
4.2.12 Reference sensitivity level . 67
4.2.12.1 Definition and applicability . 67
4.2.12.2 Limits . 67
4.2.12.3 Conformance . 68
5 Testing for compliance with technical requirements . 68
5.1 Environmental conditions for testing . 68
5.2 Void . 68
5.3 Essential radio test suites . 68
5.3.0 Introduction. 68
5.3.1 Operating band unwanted emissions . 69
5.3.1.0 General . 69
5.3.1.1 Initial conditions . 69
5.3.1.2 Procedure . 69
5.3.1.3 Test requirement . 70
5.3.2 Adjacent Channel Leakage power Ratio (ACLR) . 70
5.3.2.0 General . 70
5.3.2.1 Initial conditions . 70
5.3.2.2 Procedure . 70
5.3.2.3 Test requirement . 71
5.3.3 Transmitter spurious emis sions . 71
5.3.3.1 Initial conditions . 71
5.3.3.2 Procedure . 71
5.3.3.3 Test requirement . 72
5.3.4 Base station output power . 72
ETSI
5 ETSI EN 301 908-18 V17.1.1 (2025-02)
5.3.4.1 Initial conditions . 72
5.3.4.2 Procedure . 72
5.3.4.3 Test requirement . 72
5.3.5 Transmit intermodulation . 72
5.3.5.0 General . 72
5.3.5.1 Initial conditions . 73
5.3.5.2 Procedure . 73
5.3.5.2.1 General minimum requirement test procedure . 73
5.3.5.2.2 Additional minimum requirement (BC1 and BC2) test procedure . 74
5.3.5.2.3 Void . 75
5.3.5.3 Test requirement . 75
5.3.6 Receiver spurious emissions . 75
5.3.6.1 Initial conditions . 75
5.3.6.2 Procedure . 75
5.3.6.3 Test requirement . 75
5.3.7 In-band blocking . 75
5.3.7.1 Initial conditions . 75
5.3.7.2 Procedure . 76
5.3.7.2.1 Procedure for general blocking . 76
5.3.7.2.2 Void . 76
5.3.7.3 Test requirement . 76
5.3.8 Out-of-band blocking . 76
5.3.8.1 Initial conditions . 76
5.3.8.2 Procedure . 77
5.3.8.3 Test requirement . 77
5.3.9 Receiver intermodulation characteristics . 77
5.3.9.1 Initial conditions . 77
5.3.9.2 Procedure . 78
5.3.9.2.1 Procedure for general and narrowband intermodulation . 78
5.3.9.2.2 Procedure for additional narrowband intermodulation for GSM/EDGE . 78
5.3.9.3 Test requirement . 79
5.3.10 Narrowband blocking . 79
5.3.10.1 Initial conditions . 79
5.3.10.2 Procedure . 80
5.3.10.2.1 Procedure for narrowband blocking . 80
5.3.10.2.2 Procedure for additional narrowband blocking for GSM/EDGE . 80
5.3.10.2.3 Procedure for GSM/EDGE AM suppression . 81
5.3.10.3 Test requirement . 81
5.3.11 Reference sensitivity level . 82
5.3.11.1 General . 82
5.3.11.1A Initial conditions for GSM/EDGE reference sensitivity level . 82
5.3.11.1B Procedure for GSM/EDGE reference sensitivity level . 82
5.3.11.2 Test requirement . 82
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 83
Annex B (normative): Base Station configurations . 85
B.1 Reception with multiple receiver antenna connectors and receiver diversity . 85
B.2 Duplexers . 85
B.3 Power supply options . 85
B.4 Ancillary RF amplifiers . 85
B.5 BS using antenna arrays . 86
B.5.0 General . 86
B.5.1 Receiver tests . 86
B.5.2 Transmitter tests . 87
B.6 Transmission with multiple transmitter antenna connectors . 87
ETSI
6 ETSI EN 301 908-18 V17.1.1 (2025-02)
B.7 BS with integrated Iuant BS modem . 87
Annex C (informative): Maximum measurement uncertainty . 88
Annex D (informative): Checklist . 90
Annex E (informative): Bibliography . 91
Annex F (informative): Change history . 92
History . 93

ETSI
7 ETSI EN 301 908-18 V17.1.1 (2025-02)
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 IPR online database.
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™, LTE™ and 5G™ logo 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 ®
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Foreword
This Harmonised European Standard (EN) has been produced by ETSI Technical Committee Mobile Standards Group
(MSG).
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.6] 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.1].
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 18 of a multi-part deliverable. Full details of the entire series can be found in part 1 [i.4].

National transposition dates
Date of adoption of this EN: 6 February 2025
Date of latest announcement of this EN (doa): 31 May 2025
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 November 2025
Date of withdrawal of any conflicting National Standard (dow): 30 November 2026

ETSI
8 ETSI EN 301 908-18 V17.1.1 (2025-02)
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.1]. The present document is produced
following the guidance in ETSI EG 203 336 [i.2] as applicable.

ETSI
9 ETSI EN 301 908-18 V17.1.1 (2025-02)
1 Scope
The present document specifies technical characteristics and methods of measurements for the following equipment:
• Multi-Standard Radio capable Base stations (NR, E-UTRA, UTRA, GSM/EDGE, NB-IoT).
NOTE: UTRA TDD is not included in Release 17 of ETSI EN 301 908.
These radio equipment types are capable of operating in all or any part of the frequency bands given in table 1-1.
Table 1-1: Base station operating bands
Supported RATs and Band
Numbers
MSR Base Station
Band designation Direction of Relevant
operating bands
and Band Category transmission EC/ECC decision
(MHz)
Transmit 2 110 to 2 170
1 (BC1) n1 1 X I - [i.19] and [i.20].
Receive 1 920 to 1 980
DCS Transmit 1 805 to 1 880
3 (BC2) n3 3 X III [i.17] and [i.18]
Receive 1 710 to 1 785
Transmit 2 620 to 2 690
7 (BC1) n7 7 X VII - [i.21] and [i.22]
Receive 2 500 to 2 570
Transmit 925 to 960
8 (BC2) n8 8 X VIII E-GSM [i.17] and [i.22]
Receive 880 to 915
Transmit 791 to 821
20 (BC1) n20 20 X XX - [i.12] and [i.13]
Receive 832 to 862
Transmit 3 510 to 3 590
22 (BC1) - 22 - XXII - [i.7] and [i.24]
Receive 3 410 to 3 490
Transmit 758 to 803
28 (BC1)
n28 28 X - - [i.9] and [i.10]
(note 1) Receive 703 to 748
n31 31 X - - Transmit 462,5 to 467,5
31 (BC1) [i.26]
Receive 452,5 to 457,5
32 (BC1) - 32 - XXXII - Transmit 1 452 to 1 496 [i.14], [i.15] and
(notes 5 and 6) [i.16]
Receive N/A
Transmit and 2 570 to 2 620
38 (BC3) n38 38 - - - [i.22] and [i.23]
Receive
Transmit and 2 300 to 2 400
40 (BC3) n40 40 - - - [i.21]
Receive
41 (BC3) Transmit and 2 496 to 2 690
n41 41 X - - [i.22] and [i.23]
(note 2) Receive
Transmit and 3 400 to 3 600
42 (BC3) - 42 X - - [i.7] and [i.24]
Receive
Transmit and 3 600 to 3 800
43 (BC3) - 43 X - - [i.7] and [i.24]
Receive
50 (BC3) Transmit and 1 432 to 1 517
n50 50 - - - [i.15]
(note 5) Receive
51 (BC3) Transmit and 1 427 to 1 432
n51 51 - - - [i.15]
(note 5) Receive
65 (BC1) Transmit 2 110 to 2 200 [i.19], [i.20] and
n65 65 X - -
(note 7) [i.25]
Receive 1 920 to 2 010
67 (BC1) Transmit 738 to 758
n67 67 - - - [i.9] and [i.10]
(note 5) Receive N/A
Transmit 753 to 783
68 (BC1) - 68 - - - [i.9]and [i.10]
Receive 698 to 728
69 (BC1) Transmit 2 570 to 2 620
- 69 - - - [i.22] and [i.23]
(note 5) Receive N/A
Transmit 461 to 466
72 (BC1) n72 72 X - - [i.26]
Receive 451 to 456
Transmit 1 432 to 1 517
75 (BC1) [i.14], [i.15] and
n75 75 - - -
(note 5) Receive N/A [i.16]
ETSI
NR
E-UTRA
NB-IoT
UTRA
GSM/EDGE
10 ETSI EN 301 908-18 V17.1.1 (2025-02)
Supported RATs and Band
Numbers
MSR Base Station
Band designation Direction of Relevant
operating bands
and Band Category transmission EC/ECC decision
(MHz)
76 (BC1) Transmit 1 427 to 1 432
n76 76 - - - [i.15] and [i.16]
(note 5)
Receive N/A
77 (BC3) Transmit and 3 300 to 4 200
n77 - - - - [i.7] and [i.24]
(note 3) Receive
78 (BC3) Transmit and 3 300 to 3 800
n78 - - - - [i.7]and [i.24]
(note 4) Receive
Transmit 420 to 425
87 (BC1) - 87 X - - [i.26]
Receive 410 to 415
Transmit 422 to 427
88 (BC1) - 88 X - - [i.26]
Receive 412 to 417
NOTE 1: In Europe according to [i.9], radio equipment in band 28 operates between 758 MHz and 791 MHz for the
transmitter (FDL_low = 758 MHz and FDL_high = 791 MHz) and between 703 MHz and 736 MHz for the
receiver (FUL_low = 703 MHz and FUL_high = 736 MHz).
NOTE 2: In Europe according to [i.22] and [i.23], radio equipment in band 41 operates between 2 570 MHz and
2 620 MHz (FDL_low = 2 570 MHz and FDL_high = 2 620 MHz).
NOTE 3: In Europe according to [i.7] and [i.24], radio equipment in band 77 operates between 3 400 MHz and
3 800 MHz (F = 3 400 MHz and F = 3 800 MHz).
DL_low DL_high
NOTE 4: In Europe according to [i.7]and [i.24], radio equipment in band 78 operates between 3 400 MHz and
3 800 MHz (F = 3 400 MHz and F = 3 800 MHz).
DL_low DL_high
NOTE 5: Restricted to NR and/or E-UTRA operation when carrier aggregation is configured. The downlink
operating band is paired with the uplink operating band (external) of the carrier aggregation configuration
that is supporting the configured Pcell.
NOTE 6: Restricted to UTRA operation when dual band is configured (e.g. DB-DC-HSDPA or dual band
4C-HSDPA). The down link frequency(ies) of this band are paired with the uplink frequency(ies) of the
other FDD band (external) of the dual band configuration.
NOTE 7: This band includes two frequency ranges that are harmonised in Europe:
(a) According to [i.19] and [i.20], radio equipment in band 65 operates between 2 110 MHz to
2 170 MHz for the transmitter (F = 2 110 MHz and F = 2 170 MHz), and between
DL_low DL_high
= 1 920 MHz and F = 1 980 MHz).
1 920 MHz to 1 980 MHz for the receiver (FUL_low UL_high
(b) Based on [i.25], radio equipment in band 65 operates between 2 170 MHz to 2 200 MHz for the
transmitter (F = 2 170 MHz and F = 2 200 MHz) and between 1 980 MHz to 2 010 MHz
DL_low DL_high
for the receiver (FUL_low = 1 980 MHz and FUL_high = 2 010 MHz) as the Complementary Ground
Component (CGC) of a Mobile-satellite service by reference to the present document.

NOTE 1: For BS capable of multi-band operation, the supported operating bands may belong to different Band
Categories.
The present document covers requirements for multi-RAT capable NR, E-UTRA, UTRA and GSM/EDGE MSR Base
Stations for 3GPP™ Release 9, 10, 11, 12, 13, 14, 15, 16 and 17. This includes the requirements for MSR operating
bands from 3GPP Release 18.
The RF requirements in the present document do not apply for multi-band operation supporting bands for both FDD and
TDD.
NOTE 2: The relationship between the present document and essential requirements of article 3.2 of
2014/53/EU [i.1] is given in annex A.
ETSI
NR
E-UTRA
NB-IoT
UTRA
GSM/EDGE
11 ETSI EN 301 908-18 V17.1.1 (2025-02)
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 in the
ETSI docbox.
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 137 141 (V17.14.0) (08-2024): "Digital cellular telecommunications system (Phase 2+)
(GSM); Universal Mobile Telecommunications System (UMTS); LTE; 5G; NR, E-UTRA, UTRA
and GSM/EDGE; Multi-Standard Radio (MSR) Base Station (BS) conformance testing (3GPP
TS 37.141 version 17. 14.0 Release 17)".
[2] ETSI TS 125 104 (V17.0.1) (09-2024): "Universal Mobile Telecommunications System (UMTS);
Base Station (BS) radio transmission and reception (FDD) (3GPP TS 25.104 version 17.0.1
Release 17)".
[3] Void.
[4] ETSI TS 136 104 (V17.12.0) (05-2024): "LTE; Evolved Universal Terrestrial Radio Access
(E-UTRA); Base Station (BS) radio transmission and reception (3GPP TS 36.104 version 17.12.0
Release 17)".
[5] ETSI TS 145 005 (V17.0.0) (05-2022): "Digital cellular telecommunications system (Phase 2+)
(GSM); GSM/EDGE Radio transmission and reception (3GPP TS 45.005 version 17.0.0
Release 17)".
[6] ETSI EN 301 908-3 (V15.1.1) (05-2024): "IMT cellular networks; Harmonised Standard for
access to radio spectrum; Part 3: CDMA Direct Spread (UTRA FDD) Base Stations (BS)
Release 15".
[7] ETSI EN 301 908-14 (V17.1.1) (02-2025): "IMT cellular networks; Harmonised Standard for
access to radio spectrum; Part 14: Evolved Universal Terrestrial Radio Access (E-UTRA) Base
Stations (BS) Release 17".
[8] Void.
[9] ETSI EN 301 502 (V12.5.2) (03-2017): "Global System for Mobile communications (GSM); Base
Station (BS) equipment; Harmonised Standard covering the essential requirements of article 3.2 of
Directive 2014/53/EU".
[10] ETSI TS 137 104 (V17.13.0) (08-2024): "Digital cellular telecommunications system (Phase 2+)
(GSM); Universal Mobile Telecommunications System (UMTS); LTE; 5G; NR, E-UTRA, UTRA
and GSM/EDGE; Multi-Standard Radio (MSR) Base Station (BS) radio transmission and
reception (3GPP TS 37.104 version 17.13.0 Release 17)".
[11] ETSI TS 136 141 (V17.12.0) (05-2024): "LTE; Evolved Universal Terrestrial Radio Access
(E-UTRA); Base Station (BS) conformance testing (3GPP TS 36.141 version 17.12.0
Release 17)".
[12] ETSI TS 125 141 (V17.0.0) (04-2022): "Universal Mobile Telecommunications System (UMTS);
Base Station (BS) conformance testing (FDD) (3GPP TS 25.141 version 17.0.0 Release 17)".
[13] Void.
ETSI
12 ETSI EN 301 908-18 V17.1.1 (2025-02)
[14] ETSI TS 151 021 (V17.0.0) (05-2022): "Digital cellular telecommunications system (Phase 2+)
(GSM); Base Station System (BSS) equipment specification; Radio aspects (3GPP TS 51.021
version 17.0.0 Release 17)".
[15] ETSI TS 138 141-1 (V17.14.0) (08-2024): "5G; NR; Base Station (BS) conformance testing
Part 1: Conducted conformance testing (3GPP TS 38.141-1 version 17.14.0 Release 17)".
[16] ETSI TS 138 104 (V17.14.0) (08-2024): "5G; NR; Base Station (BS) radio transmission and
reception (3GPP TS 38.104 version 17.14.0 Release 17)".
[17] Void.
2.2 Informative references
References are either specific
...

SLOVENSKI STANDARD
01-april-2025
Celična omrežja IMT - Harmonizirani standard za dostop do radijskega spektra -
18. del: Večstandardna (NR, E-UTRA, UTRA in GSM/EDGE) radijska bazna postaja,
izdaja 17
IMT cellular networks - Harmonised Standard for access to radio spectrum - Part 18: NR,
E-UTRA, UTRA and GSM/EDGE Multi-Standard Radio (MSR) Base Station (BS)
Release 17
Ta slovenski standard je istoveten z: ETSI EN 301 908-18 V17.1.1 (2025-02)
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.

HARMONISED EUROPEAN STANDARD
IMT cellular networks;
Harmonised Standard for access to radio spectrum;
Part 18: NR, E-UTRA, UTRA and GSM/EDGE
Multi-Standard Radio (MSR) Base Station (BS)
Release 17
2 ETSI EN 301 908-18 V17.1.1 (2025-02)

Reference
REN/MSG-TFES-1502
Keywords
3G, 3GPP, 5G, cellular, digital, EDGE, E-UTRA,
GSM, IMT, IMT-2000, IMT-2020, IMT-Advanced,
LTE, LTE-Advanced, mobile, MSR, NR, radio,
regulation, UMTS, UTRA, WCDMA
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ETSI
3 ETSI EN 301 908-18 V17.1.1 (2025-02)
Contents
Intellectual Property Rights . 7
Foreword . 7
Modal verbs terminology . 8
Introduction . 8
1 Scope . 9
2 References . 11
2.1 Normative references . 11
2.2 Informative references . 12
3 Definition of terms, symbols and abbreviations . 14
3.1 Terms . 14
3.2 Symbols . 16
3.3 Abbreviations . 17
4 Technical requirements specifications . 19
4.1 Environmental profile . 19
4.2 Conformance requirements . 19
4.2.1 Introduction. 19
4.2.2 Operating band unwanted emissions . 21
4.2.2.1 Definition and applicability . 21
4.2.2.2 Limits . 21
4.2.2.2.1 Limits for Band Categories 1 and 3 . 21
4.2.2.2.2 Limits for Band Category 2 . 32
4.2.2.2.3 Limits for GSM/EDGE single-RAT operation . 40
4.2.2.2.4 Void . 40
4.2.2.2.5 Void . 40
4.2.2.2.6 Void . 40
4.2.2.2.7 Additional limits for operation in bands 50 and 75 within 1 432 to 1 452 MHz, and in bands
51 and 76 . 40
4.2.2.2.8 Additional limits for operation in band 43 for co-existence with FSS/FS . 41
4.2.2.2.9 Additional limits for operation in band 40 . 41
4.2.2.2.10 Additional limits for operation in bands 31 and 72 . 42
4.2.2.2.11 Additional limits for operation in bands 32, 50 and 75 . 43
4.2.2.3 Conformance . 44
4.2.3 Adjacent Channel Leakage power Ratio (ACLR) . 44
4.2.3.1 Definition and applicability . 44
4.2.3.2 Limits . 44
4.2.3.2.1 E-UTRA limits . 44
4.2.3.2.2 UTRA FDD limits . 46
4.2.3.2.3 Void . 46
4.2.3.2.4 Cumulative ACLR requirement in non-contiguous spectrum . 46
4.2.3.2.5 NB-IoT test requirement . 47
4.2.3.2.6 NR test requirement . 48
4.2.3.3 Conformance . 49
4.2.4 Transmitter spurious emis sions . 49
4.2.4.1 Definition and applicability . 49
4.2.4.2 Limits . 50
4.2.4.2.1 Spurious emissions . 50
4.2.4.2.2 Void . 50
4.2.4.2.3 Co-existence with other systems . 50
4.2.4.2.4 Protection of the BS receiver of own or different BS . 53
4.2.4.3 Conformance . 53
4.2.5 Base station output power . 53
4.2.5.1 Definition and applicability . 53
4.2.5.2 Limits . 54
4.2.5.3 Conformance . 54
ETSI
4 ETSI EN 301 908-18 V17.1.1 (2025-02)
4.2.6 Transmit intermodulation . 54
4.2.6.1 Definition and applicability . 54
4.2.6.2 Limits . 55
4.2.6.2.1 General limits . 55
4.2.6.2.2 Additional limits (BC1 and BC2) . 55
4.2.6.2.3 Void . 56
4.2.6.3 Conformance . 56
4.2.7 Receiver spurious emissions . 56
4.2.7.1 Definition and applicability . 56
4.2.7.2 Limits . 56
4.2.7.2.1 General limits . 56
4.2.7.2.2 Additional limits for BC2 . 57
4.2.7.3 Conformance . 57
4.2.8 In-band blocking . 57
4.2.8.1 Definition and applicability . 57
4.2.8.2 Limits . 58
4.2.8.2.1 General limits . 58
4.2.8.2.2 Void . 59
4.2.8.3 Conformance . 59
4.2.9 Out-of-band blocking . 59
4.2.9.1 Definition and applicability . 59
4.2.9.2 Limits . 59
4.2.9.3 Conformance . 60
4.2.10 Receiver intermodulation characteristics . 60
4.2.10.1 Definition and applicability . 60
4.2.10.2 Limits . 61
4.2.10.2.1 General intermodulation limits . 61
4.2.10.2.2 General narrowband intermodulation limits . 63
4.2.10.2.3 Additional narrowband intermodulation limits for GSM/EDGE . 65
4.2.10.3 Conformance . 65
4.2.11 Narrowband blocking . 65
4.2.11.1 Definition and applicability . 65
4.2.11.2 Limits . 66
4.2.11.2.1 General limits . 66
4.2.11.2.2 Additional limits for GSM/EDGE . 67
4.2.11.2.3 GSM/EDGE limits for AM suppression . 67
4.2.11.3 Conformance . 67
4.2.12 Reference sensitivity level . 67
4.2.12.1 Definition and applicability . 67
4.2.12.2 Limits . 67
4.2.12.3 Conformance . 68
5 Testing for compliance with technical requirements . 68
5.1 Environmental conditions for testing . 68
5.2 Void . 68
5.3 Essential radio test suites . 68
5.3.0 Introduction. 68
5.3.1 Operating band unwanted emissions . 69
5.3.1.0 General . 69
5.3.1.1 Initial conditions . 69
5.3.1.2 Procedure . 69
5.3.1.3 Test requirement . 70
5.3.2 Adjacent Channel Leakage power Ratio (ACLR) . 70
5.3.2.0 General . 70
5.3.2.1 Initial conditions . 70
5.3.2.2 Procedure . 70
5.3.2.3 Test requirement . 71
5.3.3 Transmitter spurious emis sions . 71
5.3.3.1 Initial conditions . 71
5.3.3.2 Procedure . 71
5.3.3.3 Test requirement . 72
5.3.4 Base station output power . 72
ETSI
5 ETSI EN 301 908-18 V17.1.1 (2025-02)
5.3.4.1 Initial conditions . 72
5.3.4.2 Procedure . 72
5.3.4.3 Test requirement . 72
5.3.5 Transmit intermodulation . 72
5.3.5.0 General . 72
5.3.5.1 Initial conditions . 73
5.3.5.2 Procedure . 73
5.3.5.2.1 General minimum requirement test procedure . 73
5.3.5.2.2 Additional minimum requirement (BC1 and BC2) test procedure . 74
5.3.5.2.3 Void . 75
5.3.5.3 Test requirement . 75
5.3.6 Receiver spurious emissions . 75
5.3.6.1 Initial conditions . 75
5.3.6.2 Procedure . 75
5.3.6.3 Test requirement . 75
5.3.7 In-band blocking . 75
5.3.7.1 Initial conditions . 75
5.3.7.2 Procedure . 76
5.3.7.2.1 Procedure for general blocking . 76
5.3.7.2.2 Void . 76
5.3.7.3 Test requirement . 76
5.3.8 Out-of-band blocking . 76
5.3.8.1 Initial conditions . 76
5.3.8.2 Procedure . 77
5.3.8.3 Test requirement . 77
5.3.9 Receiver intermodulation characteristics . 77
5.3.9.1 Initial conditions . 77
5.3.9.2 Procedure . 78
5.3.9.2.1 Procedure for general and narrowband intermodulation . 78
5.3.9.2.2 Procedure for additional narrowband intermodulation for GSM/EDGE . 78
5.3.9.3 Test requirement . 79
5.3.10 Narrowband blocking . 79
5.3.10.1 Initial conditions . 79
5.3.10.2 Procedure . 80
5.3.10.2.1 Procedure for narrowband blocking . 80
5.3.10.2.2 Procedure for additional narrowband blocking for GSM/EDGE . 80
5.3.10.2.3 Procedure for GSM/EDGE AM suppression . 81
5.3.10.3 Test requirement . 81
5.3.11 Reference sensitivity level . 82
5.3.11.1 General . 82
5.3.11.1A Initial conditions for GSM/EDGE reference sensitivity level . 82
5.3.11.1B Procedure for GSM/EDGE reference sensitivity level . 82
5.3.11.2 Test requirement . 82
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 83
Annex B (normative): Base Station configurations . 85
B.1 Reception with multiple receiver antenna connectors and receiver diversity . 85
B.2 Duplexers . 85
B.3 Power supply options . 85
B.4 Ancillary RF amplifiers . 85
B.5 BS using antenna arrays . 86
B.5.0 General . 86
B.5.1 Receiver tests . 86
B.5.2 Transmitter tests . 87
B.6 Transmission with multiple transmitter antenna connectors . 87
ETSI
6 ETSI EN 301 908-18 V17.1.1 (2025-02)
B.7 BS with integrated Iuant BS modem . 87
Annex C (informative): Maximum measurement uncertainty . 88
Annex D (informative): Checklist . 90
Annex E (informative): Bibliography . 91
Annex F (informative): Change history . 92
History . 93

ETSI
7 ETSI EN 301 908-18 V17.1.1 (2025-02)
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 IPR online database.
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™, LTE™ and 5G™ logo 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).
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.6] 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.1].
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 18 of a multi-part deliverable. Full details of the entire series can be found in part 1 [i.4].

National transposition dates
Date of adoption of this EN: 6 February 2025
Date of latest announcement of this EN (doa): 31 May 2025
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 November 2025
Date of withdrawal of any conflicting National Standard (dow): 30 November 2026

ETSI
8 ETSI EN 301 908-18 V17.1.1 (2025-02)
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.1]. The present document is produced
following the guidance in ETSI EG 203 336 [i.2] as applicable.

ETSI
9 ETSI EN 301 908-18 V17.1.1 (2025-02)
1 Scope
The present document specifies technical characteristics and methods of measurements for the following equipment:
• Multi-Standard Radio capable Base stations (NR, E-UTRA, UTRA, GSM/EDGE, NB-IoT).
NOTE: UTRA TDD is not included in Release 17 of ETSI EN 301 908.
These radio equipment types are capable of operating in all or any part of the frequency bands given in table 1-1.
Table 1-1: Base station operating bands
Supported RATs and Band
Numbers
MSR Base Station
Band designation Direction of Relevant
operating bands
and Band Category transmission EC/ECC decision
(MHz)
Transmit 2 110 to 2 170
1 (BC1) n1 1 X I - [i.19] and [i.20].
Receive 1 920 to 1 980
DCS Transmit 1 805 to 1 880
3 (BC2) n3 3 X III [i.17] and [i.18]
Receive 1 710 to 1 785
Transmit 2 620 to 2 690
7 (BC1) n7 7 X VII - [i.21] and [i.22]
Receive 2 500 to 2 570
Transmit 925 to 960
8 (BC2) n8 8 X VIII E-GSM [i.17] and [i.22]
Receive 880 to 915
Transmit 791 to 821
20 (BC1) n20 20 X XX - [i.12] and [i.13]
Receive 832 to 862
Transmit 3 510 to 3 590
22 (BC1) - 22 - XXII - [i.7] and [i.24]
Receive 3 410 to 3 490
Transmit 758 to 803
28 (BC1)
n28 28 X - - [i.9] and [i.10]
(note 1) Receive 703 to 748
n31 31 X - - Transmit 462,5 to 467,5
31 (BC1) [i.26]
Receive 452,5 to 457,5
32 (BC1) - 32 - XXXII - Transmit 1 452 to 1 496 [i.14], [i.15] and
(notes 5 and 6) [i.16]
Receive N/A
Transmit and 2 570 to 2 620
38 (BC3) n38 38 - - - [i.22] and [i.23]
Receive
Transmit and 2 300 to 2 400
40 (BC3) n40 40 - - - [i.21]
Receive
41 (BC3) Transmit and 2 496 to 2 690
n41 41 X - - [i.22] and [i.23]
(note 2) Receive
Transmit and 3 400 to 3 600
42 (BC3) - 42 X - - [i.7] and [i.24]
Receive
Transmit and 3 600 to 3 800
43 (BC3) - 43 X - - [i.7] and [i.24]
Receive
50 (BC3) Transmit and 1 432 to 1 517
n50 50 - - - [i.15]
(note 5) Receive
51 (BC3) Transmit and 1 427 to 1 432
n51 51 - - - [i.15]
(note 5) Receive
65 (BC1) Transmit 2 110 to 2 200 [i.19], [i.20] and
n65 65 X - -
(note 7) [i.25]
Receive 1 920 to 2 010
67 (BC1) Transmit 738 to 758
n67 67 - - - [i.9] and [i.10]
(note 5) Receive N/A
Transmit 753 to 783
68 (BC1) - 68 - - - [i.9]and [i.10]
Receive 698 to 728
69 (BC1) Transmit 2 570 to 2 620
- 69 - - - [i.22] and [i.23]
(note 5) Receive N/A
Transmit 461 to 466
72 (BC1) n72 72 X - - [i.26]
Receive 451 to 456
Transmit 1 432 to 1 517
75 (BC1) [i.14], [i.15] and
n75 75 - - -
(note 5) Receive N/A [i.16]
ETSI
NR
E-UTRA
NB-IoT
UTRA
GSM/EDGE
10 ETSI EN 301 908-18 V17.1.1 (2025-02)
Supported RATs and Band
Numbers
MSR Base Station
Band designation Direction of Relevant
operating bands
and Band Category transmission EC/ECC decision
(MHz)
76 (BC1) Transmit 1 427 to 1 432
n76 76 - - - [i.15] and [i.16]
(note 5)
Receive N/A
77 (BC3) Transmit and 3 300 to 4 200
n77 - - - - [i.7] and [i.24]
(note 3) Receive
78 (BC3) Transmit and 3 300 to 3 800
n78 - - - - [i.7]and [i.24]
(note 4) Receive
Transmit 420 to 425
87 (BC1) - 87 X - - [i.26]
Receive 410 to 415
Transmit 422 to 427
88 (BC1) - 88 X - - [i.26]
Receive 412 to 417
NOTE 1: In Europe according to [i.9], radio equipment in band 28 operates between 758 MHz and 791 MHz for the
transmitter (FDL_low = 758 MHz and FDL_high = 791 MHz) and between 703 MHz and 736 MHz for the
receiver (FUL_low = 703 MHz and FUL_high = 736 MHz).
NOTE 2: In Europe according to [i.22] and [i.23], radio equipment in band 41 operates between 2 570 MHz and
2 620 MHz (FDL_low = 2 570 MHz and FDL_high = 2 620 MHz).
NOTE 3: In Europe according to [i.7] and [i.24], radio equipment in band 77 operates between 3 400 MHz and
3 800 MHz (F = 3 400 MHz and F = 3 800 MHz).
DL_low DL_high
NOTE 4: In Europe according to [i.7]and [i.24], radio equipment in band 78 operates between 3 400 MHz and
3 800 MHz (F = 3 400 MHz and F = 3 800 MHz).
DL_low DL_high
NOTE 5: Restricted to NR and/or E-UTRA operation when carrier aggregation is configured. The downlink
operating band is paired with the uplink operating band (external) of the carrier aggregation configuration
that is supporting the configured Pcell.
NOTE 6: Restricted to UTRA operation when dual band is configured (e.g. DB-DC-HSDPA or dual band
4C-HSDPA). The down link frequency(ies) of this band are paired with the uplink frequency(ies) of the
other FDD band (external) of the dual band configuration.
NOTE 7: This band includes two frequency ranges that are harmonised in Europe:
(a) According to [i.19] and [i.20], radio equipment in band 65 operates between 2 110 MHz to
2 170 MHz for the transmitter (F = 2 110 MHz and F = 2 170 MHz), and between
DL_low DL_high
= 1 920 MHz and F = 1 980 MHz).
1 920 MHz to 1 980 MHz for the receiver (FUL_low UL_high
(b) Based on [i.25], radio equipment in band 65 operates between 2 170 MHz to 2 200 MHz for the
transmitter (F = 2 170 MHz and F = 2 200 MHz) and between 1 980 MHz to 2 010 MHz
DL_low DL_high
for the receiver (FUL_low = 1 980 MHz and FUL_high = 2 010 MHz) as the Complementary Ground
Component (CGC) of a Mobile-satellite service by reference to the present document.

NOTE 1: For BS capable of multi-band operation, the supported operating bands may belong to different Band
Categories.
The present document covers requirements for multi-RAT capable NR, E-UTRA, UTRA and GSM/EDGE MSR Base
Stations for 3GPP™ Release 9, 10, 11, 12, 13, 14, 15, 16 and 17. This includes the requirements for MSR operating
bands from 3GPP Release 18.
The RF requirements in the present document do not apply for multi-band operation supporting bands for both FDD and
TDD.
NOTE 2: The relationship between the present document and essential requirements of article 3.2 of
2014/53/EU [i.1] is given in annex A.
ETSI
NR
E-UTRA
NB-IoT
UTRA
GSM/EDGE
11 ETSI EN 301 908-18 V17.1.1 (2025-02)
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 in the
ETSI docbox.
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 137 141 (V17.14.0) (08-2024): "Digital cellular telecommunications system (Phase 2+)
(GSM); Universal Mobile Telecommunications System (UMTS); LTE; 5G; NR, E-UTRA, UTRA
and GSM/EDGE; Multi-Standard Radio (MSR) Base Station (BS) conformance testing (3GPP
TS 37.141 version 17. 14.0 Release 17)".
[2] ETSI TS 125 104 (V17.0.1) (09-2024): "Universal Mobile Telecommunications System (UMTS);
Base Station (BS) radio transmission and reception (FDD) (3GPP TS 25.104 version 17.0.1
Release 17)".
[3] Void.
[4] ETSI TS 136 104 (V17.12.0) (05-2024): "LTE; Evolved Universal Terrestrial Radio Access
(E-UTRA); Base Station (BS) radio transmission and reception (3GPP TS 36.104 version 17.12.0
Release 17)".
[5] ETSI TS 145 005 (V17.0.0) (05-2022): "Digital cellular telecommunications system (Phase 2+)
(GSM); GSM/EDGE Radio transmission and reception (3GPP TS 45.005 version 17.0.0
Release 17)".
[6] ETSI EN 301 908-3 (V15.1.1) (05-2024): "IMT cellular networks; Harmonised Standard for
access to radio spectrum; Part 3: CDMA Direct Spread (UTRA FDD) Base Stations (BS)
Release 15".
[7] ETSI EN 301 908-14 (V17.1.1) (02-2025): "IMT cellular networks; Harmonised Standard for
access to radio spectrum; Part 14: Evolved Universal Terrestrial Radio Access (E-UTRA) Base
Stations (BS) Release 17".
[8] Void.
[9] ETSI EN 301 502 (V12.5.2) (03-2017): "Global System for Mobile communications (GSM); Base
Station (BS) equipment; Harmonised Standard covering the essential requirements of article 3.2 of
Directive 2014/53/EU".
[10] ETSI TS 137 104 (V17.13.0) (08-2024): "Digital cellular telecommunications system (Phase 2+)
(GSM); Universal Mobile Telecomm
...