ETSI EN 303 258 V1.1.1 (2020-04)

Final draft ETSI EN 303 258 V1.0.8 (2020-01)

HARMONISED EUROPEAN STANDARD
Wireless Industrial Applications (WIA);
Equipment operating in the 5 725 MHz to 5 875 MHz
frequency range with power levels ranging up to 400 mW;
Harmonised Standard for access to radio spectrum

2 Final draft ETSI EN 303 258 V1.0.8 (2020-01)

Reference
DEN/ERM-TG41-003
Keywords
harmonised standard, radio, regulation, spread
spectrum, SRD, testing, transmission

ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: +33 4 92 94 42 00  Fax: +33 4 93 65 47 16

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
The present document can be downloaded from:
http://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
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
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
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.

© ETSI 2020.
All rights reserved.
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.
ETSI
3 Final draft ETSI EN 303 258 V1.0.8 (2020-01)
Contents
Intellectual Property Rights . 7
Foreword . 7
Modal verbs terminology . 7
Introduction . 8
1 Scope . 9
2 References . 9
2.1 Normative references . 9
2.2 Informative references . 9
3 Definition of terms, symbols and abbreviations . 11
3.1 Terms . 11
3.2 Symbols . 12
3.3 Abbreviations . 12
4 Technical requirements specifications . 13
4.1 Environmental profile . 13
4.2 Conformance requirements . 13
4.2.1 RF output power and Adaptive Power Control . 13
4.2.1.1 Definitions . 13
4.2.1.1.1 RF Output Power . 13
4.2.1.1.2 Adaptive Power Control . 13
4.2.1.2 Limits . 13
4.2.1.2.1 General requirements . 13
4.2.1.2.2 Limits for RF output power and APC range . 13
4.2.1.3 Conformance . 13
4.2.2 Occupied channel bandwidth . 14
4.2.2.1 Definition . 14
4.2.2.2 Limits . 14
4.2.2.3 Conformance . 14
4.2.3 Transmitter unwanted emissions in the spurious domain . 14
4.2.3.1 Definition . 14
4.2.3.2 Limits . 14
4.2.3.3 Conformance . 14
4.2.4 Receiver spurious emissions . 15
4.2.4.1 Definition . 15
4.2.4.2 Limits . 15
4.2.4.3 Conformance . 15
4.2.5 Receiver Blocking . 15
4.2.5.1 Applicability. 15
4.2.5.2 Definition . 15
4.2.5.3 Performance Criteria . 15
4.2.5.4 Limits . 16
4.2.5.5 Conformance . 16
4.2.6 Dynamic Frequency Selection . 16
4.2.6.1 General DFS operation . 16
4.2.6.1.1 Applicability . 16
4.2.6.1.2 General requirements . 16
4.2.6.1.3 Applicable frequency range . 16
4.2.6.1.4 DFS operational modes . 16
4.2.6.1.5 DFS operation . 17
4.2.6.2 DFS technical requirements specifications . 17
4.2.6.2.1 Applicability . 17
4.2.6.2.2 In-Service Monitoring . 18
4.2.6.2.3 Channel Shutdown. 18
4.2.6.2.4 Non-Occupancy Period . 19
4.2.7 Adaptive Channel Access Mechanism . 19
ETSI
4 Final draft ETSI EN 303 258 V1.0.8 (2020-01)
4.2.7.1 Overview . 19
4.2.7.1.1 General requirements . 19
4.2.7.1.2 Applicability . 19
4.2.7.1.3 Applicable frequency range . 20
4.2.7.2 DAA technical requirements specifications except ITS and TTT . 20
4.2.7.2.1 Minimum Tx-off time . 20
4.2.7.2.2 DAA minimum listening time . 20
4.2.7.2.3 Maximum transmitter on-time (Tx on-time) . 21
4.2.7.2.4 DAA threshold . 21
4.2.7.3 DAA technical requirements specifications for ITS . 22
4.2.7.3.1 General . 22
4.2.7.3.2 Applicable frequency range . 22
4.2.7.3.3 ITS Channel Availability Check time. 22
4.2.7.3.4 ITS Maximum TX -time . 22
on
4.2.7.3.5 ITS Minimum TX -time . 23
off
4.2.7.3.6 ITS DAA latency . 23
4.2.7.3.7 ITS DAA Probability . 23
4.2.7.3.8 ITS_Non-Occupancy Period . 24
4.2.7.3.9 ITS DAA threshold . 24
4.2.7.4 DAA technical requirements specifications for TTT, general conditions and applicable frequency
range . 24
4.2.7.5 DAA using TTT signal detection . 25
4.2.7.5.1 General . 25
4.2.7.5.2 DAA threshold for TTT . 25
4.2.7.5.3 TTT Channel Availability Check . 25
4.2.7.5.4 TTT Non-Occupancy Period . 26
4.2.7.5.5 TTT DAA Latency . 26
4.2.7.5.6 TTT In-Service Monitoring . 26
4.2.8 User Access Restrictions . 27
4.2.8.1 Definition . 27
4.2.8.2 Requirement . 27
4.2.9 Geo-localization capability . 27
4.2.9.1 Applicability. 27
4.2.9.2 Definition . 27
4.2.9.3 Requirements . 27
4.2.10 TTT Detection and Avoidance using a Geolocation Database . 28
4.2.10.1 Applicability. 28
4.2.10.2 Definition . 28
4.2.10.3 Requirements . 28
4.2.10.4 Conformance . 28
5 Testing for compliance with technical requirements . 29
5.1 Environmental conditions for testing . 29
5.1.1 General requirements . 29
5.1.2 Normal and extreme test conditions. 29
5.1.3 Test sequences and traffic load . 29
5.1.3.1 General test transmission sequences . 29
5.1.3.2 Test transmission sequences for DFS tests . 29
5.1.4 Test channels . 29
5.1.5 Antennas . 30
5.1.5.1 Integrated and dedicated antennas . 30
5.1.5.2 Transmit operating modes . 30
5.1.5.2.1 Operating mode 1 (single antenna) . 30
5.1.5.2.2 Operating mode 2 (multiple antennas, no beamforming) . 31
5.1.5.2.3 Operating mode 3 (multiple antennas, with beamforming) . 31
5.2 Void . 31
5.3 Conformance tests . 31
5.3.1 Product information . 31
5.3.2 RF output power and Adaptive Power Control . 32
5.3.2.1 Test conditions . 32
5.3.2.2 Test method . 33
5.3.2.2.1 Conducted measurement. 33
ETSI
5 Final draft ETSI EN 303 258 V1.0.8 (2020-01)
5.3.2.2.2 Radiated measurement . 35
5.3.3 Occupied Channel Bandwidth . 35
5.3.3.1 Test conditions . 35
5.3.3.2 Test method . 35
5.3.3.2.1 Conducted measurement. 35
5.3.3.2.2 Radiated measurement . 36
5.3.4 Transmitter unwanted emissions in the spurious domain . 36
5.3.4.1 Test conditions . 36
5.3.4.2 Test method . 36
5.3.4.2.1 Conducted measurement. 36
5.3.4.2.2 Radiated measurement . 39
5.3.5 Receiver spurious emissions . 39
5.3.5.1 Test conditions . 39
5.3.5.2 Test method . 39
5.3.5.2.1 Conducted measurement. 39
5.3.5.2.2 Radiated measurement . 41
5.3.6 Receiver Blocking . 41
5.3.6.1 Test frequencies . 41
5.3.6.2 Test conditions . 41
5.3.6.3 Test Method . 42
5.3.6.3.1 Conducted measurements . 42
5.3.6.3.2 Radiated measurements . 43
5.3.7 Dynamic Frequency Selection . 43
5.3.7.1 Test conditions . 43
5.3.7.1.1 General requirements . 43
5.3.7.1.2 Selection of radar test signals . 43
5.3.7.1.3 Test set-ups . 44
5.3.7.2 Test method . 45
5.3.7.2.1 Conducted measurement. 45
5.3.7.2.2 Radiated measurement . 47
5.3.8 Adaptivity (channel access mechanism) except for ITS and TTT . 47
5.3.8.1 Test conditions . 47
5.3.8.2 Test method . 47
5.3.8.2.1 Conducted measurements . 47
5.3.8.2.2 Generic test procedure for measuring channel/frequency usage . 49
5.3.8.2.3 Radiated measurements . 49
5.3.8.2.4 DAA minimum listening time measurements . 50
5.3.9 Adaptivity (channel access mechanism) for ITS . 51
5.3.9.1 General requirements . 51
5.3.9.2 ITS test signal . 51
5.3.9.3 Initial start-up test . 51
5.3.9.3.1 Start-up procedure . 51
5.3.9.3.2 Test without an ITS victim test signal during the ITS Channel Availability Check time,
T . 51
ITS_check_time
5.3.9.3.3 Test with an ITS victim test signal during the ITS Channel Availability Check time,
T . 52
ITS_check_time
5.3.9.4 Test of ITS_Maximum_TX and ITS_minimum_TX . 53
on off
5.3.9.5 ITS in-service DAA test with continuous ITS test signal . 53
5.3.9.6 ITS in-service DAA test with ITS test signal switched off after detection . 54
5.3.10 Adaptivity (channel access mechanism) for TTT . 55
5.3.10.1 General . 55
5.3.10.2 TTT test signal . 55
5.3.10.3 Initial start-up test . 56
5.3.10.3.1 Start-up procedure . 56
5.3.10.3.2 Test without a TTT victim test signal during the TTT Channel Availability Check time,
T . 56
TTT_check_time
5.3.10.3.3 Test with a TTT victim test signal during the TTT Channel Availability Check time . 56
5.3.10.4 TTT in-service DAA test with continuous TTT test signal . 57
5.3.10.5 TTT in-service DAA test with TTT test signal switched off after detection . 58
5.3.10.6 TTT DAA using a Geolocation Database . 59
ETSI
6 Final draft ETSI EN 303 258 V1.0.8 (2020-01)
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 60
Annex B (normative): Test sites and arrangements for radiated measurements . 62
B.1 General requirements . 62
B.2 Radiation test sites . 62
B.2.1 Open Area Test Site . 62
B.2.2 Semi Anechoic Room . 63
B.2.3 Fully Anechoic Room . 64
B.2.4 Measurement Distance . 65
B.3 Antennas . 66
B.3.1 General requirements . 66
B.3.2 Measurement antenna . 66
B.3.3 Substitution antenna . 66
B.4 Test fixture . 66
B.4.1 General requirements . 66
B.4.2 Description of the test fixture . 67
B.4.3 Using the test fixture for relative measurements . 67
B.5 Guidance on the use of radiation test sites . 67
B.5.1 General requirements . 67
B.5.2 Power supplies for the battery powered UUT . 67
B.5.3 Site preparation . 68
B.6 Coupling of signals . 68
B.6.1 General requirements . 68
B.6.2 Data Signals. 68
B.7 Interference Signal used for Adaptivity Tests . 69
Annex C (normative): Procedures for radiated measurements . 70
C.1 General requirements . 70
C.2 Radiated measurements in an OATS or SAR . 70
C.3 Radiated measurements in a FAR . 71
C.4 Substitution measurement . 71
C.5 Guidance for testing technical requirements . 71
C.5.1 Conformance tests and corresponding test sites . 71
C.5.2 Guidance for testing Adaptivity (Channel Access Mechanism) . 71
C.5.2.1 General requirements . 71
C.5.2.2 Measurement Set-up . 72
C.5.2.3 Calibration of the measurement Set-up . 72
C.5.2.4 Test method . 72
Annex D (normative): DFS parameters . 73
D.1 Test signals . 73
Annex E (informative): Receiver parameters . 76
E.1 General . 76
E.2 Receiver parameters . 76
Annex F (informative): Bibliography . 78
Annex G (informative): Change History . 79
History . 80

ETSI
7 Final draft ETSI EN 303 258 V1.0.8 (2020-01)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is 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 IPR Policy, no investigation, 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.
Foreword
This final draft Harmonised European Standard (EN) has been produced by ETSI Technical Committee
Electromagnetic compatibility and Radio spectrum Matters (ERM), and is now submitted for the Vote phase of the
ETSI standards EN Approval Procedure.
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.3] 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.
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 18 months after doa

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.
ETSI
8 Final draft ETSI EN 303 258 V1.0.8 (2020-01)
Introduction
The market is in need of network solutions, each with different performance characteristics and functional capabilities,
matching diverse application requirements. Industrial automation applications, covering different industrial application
domains such as:
• process automation, covering for example the following industry branches:
- oil and gas, refining;
- chemical;
- pharmaceutical;
- mining;
- pulp and paper;
- water & wastewater;
- steel;
• electric power like:
- power generation, e.g. wind turbine;
- power distribution (grid);
• factory automation, e.g. covering the following industry branches:
- food and beverage;
- automotive;
- machinery;
- semiconductor.
The technical characteristics and applications specific to radio spectrum requirements are identified in ETSI
TR 102 889-2 [i.18].
In industrial automation, many different wireless communication networks may operate in the same premises. Examples ®
of these networks are IEC 62591 (WirelessHART , see note) [i.10], IEC 62601 (WIA-PA) [i.11] and IEC 62734
(ISA100.11a) [i.12]; all these networks use IEEE 802.15.4 [i.6] for the process automation applications. Other examples
of wireless networks are specified in IEC 61784-1 [i.8] and IEC 61784-2 [i.9] CPs that use IEEE 802.11 [i.4] and
IEEE 802.15.1 [i.5] for factory automation applications. Different to wired fieldbuses, the wireless communication
interfaces can interfere with others on the same premises or environment, disturbing each other. Therefore, without a
predictable assuredness of coexistence, it could be problematic to have multiple wireless communication networks in
the same facility or environment, especially because the time-criticality, the safety and the security of the operation may
not be ensured in such an environment. ®
NOTE: WirelessHART is the registered trade name of the HART Communication Foundation. This information
is given for the convenience of users of the present document and does not constitute an endorsement by
ETSI of the product named. Equivalent products may be used if they can be shown to lead to the same
results.
The mitigation techniques which have to be implemented to protect primary radio services limit the applicability to
non-real-time applications with relaxed latencies e.g. above 1 s and limits the probability to fulfil the demands on high
reliability and high Quality of Services (non-critical links) of the wireless industrial applications. Thus, the 5,8 GHz
WIA band may be appropriate for non-real time, non-critical purposes, e.g. monitoring in wireless industrial
applications.
Equipment covered by the present document is operated in accordance with the CEPT ECC ERC
Recommendation 70-03 [i.7], annex 2.

ETSI
9 Final draft ETSI EN 303 258 V1.0.8 (2020-01)
1 Scope
The present document specifies technical characteristics and methods of measurements for Wireless Industrial
Applications equipment operating in the 5 725 MHz to 5 875 MHz frequency band. The present document also specifies
spectrum sharing mechanisms to enable co-existence with other equipment operating in the 5 725 MHz to 5 875 MHz
frequency band.
The present document covers the essential requirements of article 3.2 of Directive 2014/53/EU [i.2] under the
conditions identified in annex A.
2 References
2.1 Normative references
References are specific, identified by date of publication and/or edition number or version number. Only the cited
version 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.
Not applicable.
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] IEC/EN 62657-1 (Edition 1): "Industrial communication networks - Wireless communication
networks - Part 1: Wireless communication requirements and spectrum considerations".
[i.2] Directive 2014/53/EU of the E
...

HARMONISED EUROPEAN STANDARD
Wireless Industrial Applications (WIA);
Equipment operating in the 5 725 MHz to 5 875 MHz
frequency range with power levels ranging up to 400 mW;
Harmonised Standard for access to radio spectrum

2 ETSI EN 303 258 V1.1.1 (2020-04)

Reference
DEN/ERM-TG41-003
Keywords
harmonised standard, radio, regulation, spread
spectrum, SRD, testing, transmission

ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: +33 4 92 94 42 00  Fax: +33 4 93 65 47 16

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
The present document can be downloaded from:
http://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
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
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
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.

© ETSI 2020.
All rights reserved.
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.
ETSI
3 ETSI EN 303 258 V1.1.1 (2020-04)
Contents
Intellectual Property Rights . 7
Foreword . 7
Modal verbs terminology . 7
Introduction . 8
1 Scope . 9
2 References . 9
2.1 Normative references . 9
2.2 Informative references . 9
3 Definition of terms, symbols and abbreviations . 11
3.1 Terms . 11
3.2 Symbols . 12
3.3 Abbreviations . 12
4 Technical requirements specifications . 13
4.1 Environmental profile . 13
4.2 Conformance requirements . 13
4.2.1 RF output power and Adaptive Power Control . 13
4.2.1.1 Definitions . 13
4.2.1.1.1 RF Output Power . 13
4.2.1.1.2 Adaptive Power Control . 13
4.2.1.2 Limits . 13
4.2.1.2.1 General requirements . 13
4.2.1.2.2 Limits for RF output power and APC range . 13
4.2.1.3 Conformance . 13
4.2.2 Occupied channel bandwidth . 14
4.2.2.1 Definition . 14
4.2.2.2 Limits . 14
4.2.2.3 Conformance . 14
4.2.3 Transmitter unwanted emissions in the spurious domain . 14
4.2.3.1 Definition . 14
4.2.3.2 Limits . 14
4.2.3.3 Conformance . 14
4.2.4 Receiver spurious emissions . 15
4.2.4.1 Definition . 15
4.2.4.2 Limits . 15
4.2.4.3 Conformance . 15
4.2.5 Receiver Blocking . 15
4.2.5.1 Applicability. 15
4.2.5.2 Definition . 15
4.2.5.3 Performance Criteria . 15
4.2.5.4 Limits . 15
4.2.5.5 Conformance . 16
4.2.6 Dynamic Frequency Selection . 16
4.2.6.1 General DFS operation . 16
4.2.6.1.1 Applicability . 16
4.2.6.1.2 General requirements . 16
4.2.6.1.3 Applicable frequency range . 16
4.2.6.1.4 DFS operational modes . 16
4.2.6.1.5 DFS operation . 17
4.2.6.2 DFS technical requirements specifications . 17
4.2.6.2.1 Applicability . 17
4.2.6.2.2 In-Service Monitoring . 18
4.2.6.2.3 Channel Shutdown. 18
4.2.6.2.4 Non-Occupancy Period . 19
4.2.7 Adaptive Channel Access Mechanism . 19
ETSI
4 ETSI EN 303 258 V1.1.1 (2020-04)
4.2.7.1 Overview . 19
4.2.7.1.1 General requirements . 19
4.2.7.1.2 Applicability . 19
4.2.7.1.3 Applicable frequency range . 19
4.2.7.2 DAA technical requirements specifications except ITS and TTT . 20
4.2.7.2.1 Minimum Tx-off time . 20
4.2.7.2.2 DAA minimum listening time . 20
4.2.7.2.3 Maximum transmitter on-time (Tx on-time) . 20
4.2.7.2.4 DAA threshold . 21
4.2.7.3 DAA technical requirements specifications for ITS . 21
4.2.7.3.1 General . 21
4.2.7.3.2 Applicable frequency range . 22
4.2.7.3.3 ITS Channel Availability Check time. 22
4.2.7.3.4 ITS Maximum TX -time . 22
on
4.2.7.3.5 ITS Minimum TX -time . 22
off
4.2.7.3.6 ITS DAA latency . 23
4.2.7.3.7 ITS DAA Probability . 23
4.2.7.3.8 ITS_Non-Occupancy Period . 23
4.2.7.3.9 ITS DAA threshold . 24
4.2.7.4 DAA technical requirements specifications for TTT, general conditions and applicable frequency
range . 24
4.2.7.5 DAA using TTT signal detection . 24
4.2.7.5.1 General . 24
4.2.7.5.2 DAA threshold for TTT . 24
4.2.7.5.3 TTT Channel Availability Check . 25
4.2.7.5.4 TTT Non-Occupancy Period . 25
4.2.7.5.5 TTT DAA Latency . 25
4.2.7.5.6 TTT In-Service Monitoring . 26
4.2.8 User Access Restrictions . 26
4.2.8.1 Definition . 26
4.2.8.2 Requirement . 26
4.2.9 Geo-localization capability . 27
4.2.9.1 Applicability. 27
4.2.9.2 Definition . 27
4.2.9.3 Requirements . 27
4.2.10 TTT Detection and Avoidance using a Geolocation Database . 27
4.2.10.1 Applicability. 27
4.2.10.2 Definition . 27
4.2.10.3 Requirements . 28
4.2.10.4 Conformance . 28
5 Testing for compliance with technical requirements . 28
5.1 Environmental conditions for testing . 28
5.1.1 General requirements . 28
5.1.2 Normal and extreme test conditions. 28
5.1.3 Test sequences and traffic load . 28
5.1.3.1 General test transmission sequences . 28
5.1.3.2 Test transmission sequences for DFS tests . 29
5.1.4 Test channels . 29
5.1.5 Antennas . 30
5.1.5.1 Integrated and dedicated antennas . 30
5.1.5.2 Transmit operating modes . 30
5.1.5.2.1 Operating mode 1 (single antenna) . 30
5.1.5.2.2 Operating mode 2 (multiple antennas, no beamforming) . 30
5.1.5.2.3 Operating mode 3 (multiple antennas, with beamforming) . 30
5.2 Void . 30
5.3 Conformance tests . 30
5.3.1 Product information . 30
5.3.2 RF output power and Adaptive Power Control . 32
5.3.2.1 Test conditions . 32
5.3.2.2 Test method . 32
5.3.2.2.1 Conducted measurement. 32
ETSI
5 ETSI EN 303 258 V1.1.1 (2020-04)
5.3.2.2.2 Radiated measurement . 34
5.3.3 Occupied Channel Bandwidth . 34
5.3.3.1 Test conditions . 34
5.3.3.2 Test method . 35
5.3.3.2.1 Conducted measurement. 35
5.3.3.2.2 Radiated measurement . 35
5.3.4 Transmitter unwanted emissions in the spurious domain . 36
5.3.4.1 Test conditions . 36
5.3.4.2 Test method . 36
5.3.4.2.1 Conducted measurement. 36
5.3.4.2.2 Radiated measurement . 38
5.3.5 Receiver spurious emissions . 38
5.3.5.1 Test conditions . 38
5.3.5.2 Test method . 39
5.3.5.2.1 Conducted measurement. 39
5.3.5.2.2 Radiated measurement . 41
5.3.6 Receiver Blocking . 41
5.3.6.1 Test frequencies . 41
5.3.6.2 Test conditions . 41
5.3.6.3 Test Method . 41
5.3.6.3.1 Conducted measurements . 41
5.3.6.3.2 Radiated measurements . 42
5.3.7 Dynamic Frequency Selection . 43
5.3.7.1 Test conditions . 43
5.3.7.1.1 General requirements . 43
5.3.7.1.2 Selection of radar test signals . 43
5.3.7.1.3 Test set-ups . 43
5.3.7.2 Test method . 45
5.3.7.2.1 Conducted measurement. 45
5.3.7.2.2 Radiated measurement . 47
5.3.8 Adaptivity (channel access mechanism) except for ITS and TTT . 47
5.3.8.1 Test conditions . 47
5.3.8.2 Test method . 47
5.3.8.2.1 Conducted measurements . 47
5.3.8.2.2 Generic test procedure for measuring channel/frequency usage . 49
5.3.8.2.3 Radiated measurements . 49
5.3.8.2.4 DAA minimum listening time measurements . 50
5.3.9 Adaptivity (channel access mechanism) for ITS . 51
5.3.9.1 General requirements . 51
5.3.9.2 ITS test signal . 51
5.3.9.3 Initial start-up test . 51
5.3.9.3.1 Start-up procedure . 51
5.3.9.3.2 Test without an ITS victim test signal during the ITS Channel Availability Check time,
T . 51
ITS_check_time
5.3.9.3.3 Test with an ITS victim test signal during the ITS Channel Availability Check time,
T . 52
ITS_check_time
5.3.9.4 Test of ITS_Maximum_TX and ITS_minimum_TX . 53
on off
5.3.9.5 ITS in-service DAA test with continuous ITS test signal . 53
5.3.9.6 ITS in-service DAA test with ITS test signal switched off after detection . 54
5.3.10 Adaptivity (channel access mechanism) for TTT . 55
5.3.10.1 General . 55
5.3.10.2 TTT test signal . 55
5.3.10.3 Initial start-up test . 56
5.3.10.3.1 Start-up procedure . 56
5.3.10.3.2 Test without a TTT victim test signal during the TTT Channel Availability Check time,
T . 56
TTT_check_time
5.3.10.3.3 Test with a TTT victim test signal during the TTT Channel Availability Check time . 56
5.3.10.4 TTT in-service DAA test with continuous TTT test signal . 57
5.3.10.5 TTT in-service DAA test with TTT test signal switched off after detection . 58
5.3.10.6 TTT DAA using a Geolocation Database . 59
ETSI
6 ETSI EN 303 258 V1.1.1 (2020-04)
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 60
Annex B (normative): Test sites and arrangements for radiated measurements . 62
B.1 General requirements . 62
B.2 Radiation test sites . 62
B.2.1 Open Area Test Site . 62
B.2.2 Semi Anechoic Room . 63
B.2.3 Fully Anechoic Room . 64
B.2.4 Measurement Distance . 65
B.3 Antennas . 66
B.3.1 General requirements . 66
B.3.2 Measurement antenna . 66
B.3.3 Substitution antenna . 66
B.4 Test fixture . 66
B.4.1 General requirements . 66
B.4.2 Description of the test fixture . 67
B.4.3 Using the test fixture for relative measurements . 67
B.5 Guidance on the use of radiation test sites . 67
B.5.1 General requirements . 67
B.5.2 Power supplies for the battery powered UUT . 67
B.5.3 Site preparation . 68
B.6 Coupling of signals . 68
B.6.1 General requirements . 68
B.6.2 Data Signals. 68
B.7 Interference Signal used for Adaptivity Tests . 69
Annex C (normative): Procedures for radiated measurements . 70
C.1 General requirements . 70
C.2 Radiated measurements in an OATS or SAR . 70
C.3 Radiated measurements in a FAR . 71
C.4 Substitution measurement . 71
C.5 Guidance for testing technical requirements . 71
C.5.1 Conformance tests and corresponding test sites . 71
C.5.2 Guidance for testing Adaptivity (Channel Access Mechanism) . 71
C.5.2.1 General requirements . 71
C.5.2.2 Measurement Set-up . 72
C.5.2.3 Calibration of the measurement Set-up . 72
C.5.2.4 Test method . 72
Annex D (normative): DFS parameters . 73
D.1 Test signals . 73
Annex E (informative): Receiver parameters . 76
E.1 General . 76
E.2 Receiver parameters . 76
Annex F (informative): Bibliography . 78
Annex G (informative): Change History . 79
History . 80

ETSI
7 ETSI EN 303 258 V1.1.1 (2020-04)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is 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 IPR Policy, no investigation, 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.
Foreword
This Harmonised European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic
compatibility and Radio spectrum Matters (ERM).
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.3] 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.
National transposition dates
Date of adoption of this EN: 31 March 2020
Date of latest announcement of this EN (doa): 30 June 2020
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 December 2020
Date of withdrawal of any conflicting National Standard (dow): 31 December 2021

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.
ETSI
8 ETSI EN 303 258 V1.1.1 (2020-04)
Introduction
The market is in need of network solutions, each with different performance characteristics and functional capabilities,
matching diverse application requirements. Industrial automation applications, covering different industrial application
domains such as:
• process automation, covering for example the following industry branches:
- oil and gas, refining;
- chemical;
- pharmaceutical;
- mining;
- pulp and paper;
- water & wastewater;
- steel;
• electric power like:
- power generation, e.g. wind turbine;
- power distribution (grid);
• factory automation, e.g. covering the following industry branches:
- food and beverage;
- automotive;
- machinery;
- semiconductor.
The technical characteristics and applications specific to radio spectrum requirements are identified in ETSI
TR 102 889-2 [i.18].
In industrial automation, many different wireless communication networks may operate in the same premises. Examples ®
of these networks are IEC 62591 (WirelessHART , see note) [i.10], IEC 62601 (WIA-PA) [i.11] and IEC 62734
(ISA100.11a) [i.12]; all these networks use IEEE 802.15.4 [i.6] for the process automation applications. Other examples
of wireless networks are specified in IEC 61784-1 [i.8] and IEC 61784-2 [i.9] CPs that use IEEE 802.11 [i.4] and
IEEE 802.15.1 [i.5] for factory automation applications. Different to wired fieldbuses, the wireless communication
interfaces can interfere with others on the same premises or environment, disturbing each other. Therefore, without a
predictable assuredness of coexistence, it could be problematic to have multiple wireless communication networks in
the same facility or environment, especially because the time-criticality, the safety and the security of the operation may
not be ensured in such an environment. ®
NOTE: WirelessHART is the registered trade name of the HART Communication Foundation. This information
is given for the convenience of users of the present document and does not constitute an endorsement by
ETSI of the product named. Equivalent products may be used if they can be shown to lead to the same
results.
The mitigation techniques which have to be implemented to protect primary radio services limit the applicability to
non-real-time applications with relaxed latencies e.g. above 1 s and limits the probability to fulfil the demands on high
reliability and high Quality of Services (non-critical links) of the wireless industrial applications. Thus, the 5,8 GHz
WIA band may be appropriate for non-real time, non-critical purposes, e.g. monitoring in wireless industrial
applications.
Equipment covered by the present document is operated in accordance with the CEPT ECC ERC Recommendation
70-03 [i.7], annex 2.
ETSI
9 ETSI EN 303 258 V1.1.1 (2020-04)
1 Scope
The present document specifies technical characteristics and methods of measurements for Wireless Industrial
Applications equipment operating in the 5 725 MHz to 5 875 MHz frequency band. The present document also specifies
spectrum sharing mechanisms to enable co-existence with other equipment operating in the 5 725 MHz to 5 875 MHz
frequency band.
The present document covers the essential requirements of article 3.2 of Directive 2014/53/EU [i.2] under the
conditions identified in annex A.
2 References
2.1 Normative references
References are specific, identified by date of publication and/or edition number or version number. Only the cited
version 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.
Not applicable.
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] IEC/EN 62657-1 (Edition 1): "Industrial communication networks - Wireless communication
networks - Part 1: Wireless communication requirements and spectrum considerations".
[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 repeali
...

SLOVENSKI STANDARD
01-junij-2020
Industrijske brezžične komunikacije (WIA) - Oprema, ki deluje v frekvenčnem
območju od 5725 MHz do 5875 MHz z močnostnimi nivoji do največ 400 mW -
Harmonizirani standard za dostop do radijskega spektra
Wireless Industrial Applications (WIA) - Equipment operating in the 5 725 MHz to 5 875
MHz frequency range with power levels ranging up to 400 mW - Harmonised Standard
for access to radio spectrum
Ta slovenski standard je istoveten z: ETSI EN 303 258 V1.1.1 (2020-04)
ICS:
33.060.01 Radijske komunikacije na Radiocommunications in
splošno general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

HARMONISED EUROPEAN STANDARD
Wireless Industrial Applications (WIA);
Equipment operating in the 5 725 MHz to 5 875 MHz
frequency range with power levels ranging up to 400 mW;
Harmonised Standard for access to radio spectrum

2 ETSI EN 303 258 V1.1.1 (2020-04)

Reference
DEN/ERM-TG41-003
Keywords
harmonised standard, radio, regulation, spread
spectrum, SRD, testing, transmission

ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: +33 4 92 94 42 00  Fax: +33 4 93 65 47 16

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
The present document can be downloaded from:
http://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
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
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
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.

© ETSI 2020.
All rights reserved.
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.
ETSI
3 ETSI EN 303 258 V1.1.1 (2020-04)
Contents
Intellectual Property Rights . 7
Foreword . 7
Modal verbs terminology . 7
Introduction . 8
1 Scope . 9
2 References . 9
2.1 Normative references . 9
2.2 Informative references . 9
3 Definition of terms, symbols and abbreviations . 11
3.1 Terms . 11
3.2 Symbols . 12
3.3 Abbreviations . 12
4 Technical requirements specifications . 13
4.1 Environmental profile . 13
4.2 Conformance requirements . 13
4.2.1 RF output power and Adaptive Power Control . 13
4.2.1.1 Definitions . 13
4.2.1.1.1 RF Output Power . 13
4.2.1.1.2 Adaptive Power Control . 13
4.2.1.2 Limits . 13
4.2.1.2.1 General requirements . 13
4.2.1.2.2 Limits for RF output power and APC range . 13
4.2.1.3 Conformance . 13
4.2.2 Occupied channel bandwidth . 14
4.2.2.1 Definition . 14
4.2.2.2 Limits . 14
4.2.2.3 Conformance . 14
4.2.3 Transmitter unwanted emissions in the spurious domain . 14
4.2.3.1 Definition . 14
4.2.3.2 Limits . 14
4.2.3.3 Conformance . 14
4.2.4 Receiver spurious emissions . 15
4.2.4.1 Definition . 15
4.2.4.2 Limits . 15
4.2.4.3 Conformance . 15
4.2.5 Receiver Blocking . 15
4.2.5.1 Applicability. 15
4.2.5.2 Definition . 15
4.2.5.3 Performance Criteria . 15
4.2.5.4 Limits . 15
4.2.5.5 Conformance . 16
4.2.6 Dynamic Frequency Selection . 16
4.2.6.1 General DFS operation . 16
4.2.6.1.1 Applicability . 16
4.2.6.1.2 General requirements . 16
4.2.6.1.3 Applicable frequency range . 16
4.2.6.1.4 DFS operational modes . 16
4.2.6.1.5 DFS operation . 17
4.2.6.2 DFS technical requirements specifications . 17
4.2.6.2.1 Applicability . 17
4.2.6.2.2 In-Service Monitoring . 18
4.2.6.2.3 Channel Shutdown. 18
4.2.6.2.4 Non-Occupancy Period . 19
4.2.7 Adaptive Channel Access Mechanism . 19
ETSI
4 ETSI EN 303 258 V1.1.1 (2020-04)
4.2.7.1 Overview . 19
4.2.7.1.1 General requirements . 19
4.2.7.1.2 Applicability . 19
4.2.7.1.3 Applicable frequency range . 19
4.2.7.2 DAA technical requirements specifications except ITS and TTT . 20
4.2.7.2.1 Minimum Tx-off time . 20
4.2.7.2.2 DAA minimum listening time . 20
4.2.7.2.3 Maximum transmitter on-time (Tx on-time) . 20
4.2.7.2.4 DAA threshold . 21
4.2.7.3 DAA technical requirements specifications for ITS . 21
4.2.7.3.1 General . 21
4.2.7.3.2 Applicable frequency range . 22
4.2.7.3.3 ITS Channel Availability Check time. 22
4.2.7.3.4 ITS Maximum TX -time . 22
on
4.2.7.3.5 ITS Minimum TX -time . 22
off
4.2.7.3.6 ITS DAA latency . 23
4.2.7.3.7 ITS DAA Probability . 23
4.2.7.3.8 ITS_Non-Occupancy Period . 23
4.2.7.3.9 ITS DAA threshold . 24
4.2.7.4 DAA technical requirements specifications for TTT, general conditions and applicable frequency
range . 24
4.2.7.5 DAA using TTT signal detection . 24
4.2.7.5.1 General . 24
4.2.7.5.2 DAA threshold for TTT . 24
4.2.7.5.3 TTT Channel Availability Check . 25
4.2.7.5.4 TTT Non-Occupancy Period . 25
4.2.7.5.5 TTT DAA Latency . 25
4.2.7.5.6 TTT In-Service Monitoring . 26
4.2.8 User Access Restrictions . 26
4.2.8.1 Definition . 26
4.2.8.2 Requirement . 26
4.2.9 Geo-localization capability . 27
4.2.9.1 Applicability. 27
4.2.9.2 Definition . 27
4.2.9.3 Requirements . 27
4.2.10 TTT Detection and Avoidance using a Geolocation Database . 27
4.2.10.1 Applicability. 27
4.2.10.2 Definition . 27
4.2.10.3 Requirements . 28
4.2.10.4 Conformance . 28
5 Testing for compliance with technical requirements . 28
5.1 Environmental conditions for testing . 28
5.1.1 General requirements . 28
5.1.2 Normal and extreme test conditions. 28
5.1.3 Test sequences and traffic load . 28
5.1.3.1 General test transmission sequences . 28
5.1.3.2 Test transmission sequences for DFS tests . 29
5.1.4 Test channels . 29
5.1.5 Antennas . 30
5.1.5.1 Integrated and dedicated antennas . 30
5.1.5.2 Transmit operating modes . 30
5.1.5.2.1 Operating mode 1 (single antenna) . 30
5.1.5.2.2 Operating mode 2 (multiple antennas, no beamforming) . 30
5.1.5.2.3 Operating mode 3 (multiple antennas, with beamforming) . 30
5.2 Void . 30
5.3 Conformance tests . 30
5.3.1 Product information . 30
5.3.2 RF output power and Adaptive Power Control . 32
5.3.2.1 Test conditions . 32
5.3.2.2 Test method . 32
5.3.2.2.1 Conducted measurement. 32
ETSI
5 ETSI EN 303 258 V1.1.1 (2020-04)
5.3.2.2.2 Radiated measurement . 34
5.3.3 Occupied Channel Bandwidth . 34
5.3.3.1 Test conditions . 34
5.3.3.2 Test method . 35
5.3.3.2.1 Conducted measurement. 35
5.3.3.2.2 Radiated measurement . 35
5.3.4 Transmitter unwanted emissions in the spurious domain . 36
5.3.4.1 Test conditions . 36
5.3.4.2 Test method . 36
5.3.4.2.1 Conducted measurement. 36
5.3.4.2.2 Radiated measurement . 38
5.3.5 Receiver spurious emissions . 38
5.3.5.1 Test conditions . 38
5.3.5.2 Test method . 39
5.3.5.2.1 Conducted measurement. 39
5.3.5.2.2 Radiated measurement . 41
5.3.6 Receiver Blocking . 41
5.3.6.1 Test frequencies . 41
5.3.6.2 Test conditions . 41
5.3.6.3 Test Method . 41
5.3.6.3.1 Conducted measurements . 41
5.3.6.3.2 Radiated measurements . 42
5.3.7 Dynamic Frequency Selection . 43
5.3.7.1 Test conditions . 43
5.3.7.1.1 General requirements . 43
5.3.7.1.2 Selection of radar test signals . 43
5.3.7.1.3 Test set-ups . 43
5.3.7.2 Test method . 45
5.3.7.2.1 Conducted measurement. 45
5.3.7.2.2 Radiated measurement . 47
5.3.8 Adaptivity (channel access mechanism) except for ITS and TTT . 47
5.3.8.1 Test conditions . 47
5.3.8.2 Test method . 47
5.3.8.2.1 Conducted measurements . 47
5.3.8.2.2 Generic test procedure for measuring channel/frequency usage . 49
5.3.8.2.3 Radiated measurements . 49
5.3.8.2.4 DAA minimum listening time measurements . 50
5.3.9 Adaptivity (channel access mechanism) for ITS . 51
5.3.9.1 General requirements . 51
5.3.9.2 ITS test signal . 51
5.3.9.3 Initial start-up test . 51
5.3.9.3.1 Start-up procedure . 51
5.3.9.3.2 Test without an ITS victim test signal during the ITS Channel Availability Check time,
T . 51
ITS_check_time
5.3.9.3.3 Test with an ITS victim test signal during the ITS Channel Availability Check time,
T . 52
ITS_check_time
5.3.9.4 Test of ITS_Maximum_TX and ITS_minimum_TX . 53
on off
5.3.9.5 ITS in-service DAA test with continuous ITS test signal . 53
5.3.9.6 ITS in-service DAA test with ITS test signal switched off after detection . 54
5.3.10 Adaptivity (channel access mechanism) for TTT . 55
5.3.10.1 General . 55
5.3.10.2 TTT test signal . 55
5.3.10.3 Initial start-up test . 56
5.3.10.3.1 Start-up procedure . 56
5.3.10.3.2 Test without a TTT victim test signal during the TTT Channel Availability Check time,
T . 56
TTT_check_time
5.3.10.3.3 Test with a TTT victim test signal during the TTT Channel Availability Check time . 56
5.3.10.4 TTT in-service DAA test with continuous TTT test signal . 57
5.3.10.5 TTT in-service DAA test with TTT test signal switched off after detection . 58
5.3.10.6 TTT DAA using a Geolocation Database . 59
ETSI
6 ETSI EN 303 258 V1.1.1 (2020-04)
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 60
Annex B (normative): Test sites and arrangements for radiated measurements . 62
B.1 General requirements . 62
B.2 Radiation test sites . 62
B.2.1 Open Area Test Site . 62
B.2.2 Semi Anechoic Room . 63
B.2.3 Fully Anechoic Room . 64
B.2.4 Measurement Distance . 65
B.3 Antennas . 66
B.3.1 General requirements . 66
B.3.2 Measurement antenna . 66
B.3.3 Substitution antenna . 66
B.4 Test fixture . 66
B.4.1 General requirements . 66
B.4.2 Description of the test fixture . 67
B.4.3 Using the test fixture for relative measurements . 67
B.5 Guidance on the use of radiation test sites . 67
B.5.1 General requirements . 67
B.5.2 Power supplies for the battery powered UUT . 67
B.5.3 Site preparation . 68
B.6 Coupling of signals . 68
B.6.1 General requirements . 68
B.6.2 Data Signals. 68
B.7 Interference Signal used for Adaptivity Tests . 69
Annex C (normative): Procedures for radiated measurements . 70
C.1 General requirements . 70
C.2 Radiated measurements in an OATS or SAR . 70
C.3 Radiated measurements in a FAR . 71
C.4 Substitution measurement . 71
C.5 Guidance for testing technical requirements . 71
C.5.1 Conformance tests and corresponding test sites . 71
C.5.2 Guidance for testing Adaptivity (Channel Access Mechanism) . 71
C.5.2.1 General requirements . 71
C.5.2.2 Measurement Set-up . 72
C.5.2.3 Calibration of the measurement Set-up . 72
C.5.2.4 Test method . 72
Annex D (normative): DFS parameters . 73
D.1 Test signals . 73
Annex E (informative): Receiver parameters . 76
E.1 General . 76
E.2 Receiver parameters . 76
Annex F (informative): Bibliography . 78
Annex G (informative): Change History . 79
History . 80

ETSI
7 ETSI EN 303 258 V1.1.1 (2020-04)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is 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 IPR Policy, no investigation, 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.
Foreword
This Harmonised European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic
compatibility and Radio spectrum Matters (ERM).
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.3] 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.
National transposition dates
Date of adoption of this EN: 31 March 2020
Date of latest announcement of this EN (doa): 30 June 2020
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 December 2020
Date of withdrawal of any conflicting National Standard (dow): 31 December 2021

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.
ETSI
8 ETSI EN 303 258 V1.1.1 (2020-04)
Introduction
The market is in need of network solutions, each with different performance characteristics and functional capabilities,
matching diverse application requirements. Industrial automation applications, covering different industrial application
domains such as:
• process automation, covering for example the following industry branches:
- oil and gas, refining;
- chemical;
- pharmaceutical;
- mining;
- pulp and paper;
- water & wastewater;
- steel;
• electric power like:
- power generation, e.g. wind turbine;
- power distribution (grid);
• factory automation, e.g. covering the following industry branches:
- food and beverage;
- automotive;
- machinery;
- semiconductor.
The technical characteristics and applications specific to radio spectrum requirements are identified in ETSI
TR 102 889-2 [i.18].
In industrial automation, many different wireless communication networks may operate in the same premises. Examples ®
of these networks are IEC 62591 (WirelessHART , see note) [i.10], IEC 62601 (WIA-PA) [i.11] and IEC 62734
(ISA100.11a) [i.12]; all these networks use IEEE 802.15.4 [i.6] for the process automation applications. Other examples
of wireless networks are specified in IEC 61784-1 [i.8] and IEC 61784-2 [i.9] CPs that use IEEE 802.11 [i.4] and
IEEE 802.15.1 [i.5] for factory automation applications. Different to wired fieldbuses, the wireless communication
interfaces can interfere with others on the same premises or environment, disturbing each other. Therefore, without a
predictable assuredness of coexistence, it could be problematic to have multiple wireless communication networks in
the same facility or environment, especially because the time-criticality, the safety and the security of the operation may
not be ensured in such an environment. ®
NOTE: WirelessHART is the registered trade name of the HART Communication Foundation. This information
is given for the convenience of users of the present document and does not constitute an endorsement by
ETSI of the product named. Equivalent products may be used if they can be shown to lead to the same
results.
The mitigation techniques which have to be implemented to protect primary radio services limit the applicability to
non-real-time applications with relaxed latencies e.g. above 1 s and limits the probability to fulfil the demands on high
reliability and high Quality of Services (non-critical links) of the wireless industrial applications. Thus, the 5,8 GHz
WIA band may be appropriate for non-real time, non-critical purposes, e.g. monitoring in wireless industrial
applications.
Equipment covered by the present document is operated in accordance with the CEPT ECC ERC Recommendation
70-03 [i.7], annex 2.
ETSI
9 ETSI EN 303 258 V1.1.1 (2020-04)
1 Scope
The present document specifies technical characteristics and methods of measurements for Wireless Industrial
Applications equipment operating in the 5 725 MHz to 5 875 MHz frequency band. The present document also specifies
spectrum sharing mechanisms to enable co-existence with other equipment operating in the 5 725 MHz to 5 875 MHz
frequency band.
The present document covers the essential requirements of article 3.2 of Directive 2014/53/EU [i.2] under the
conditions identified in annex A.
2 References
2.1 Normative references
References are specific, identified by date of publication and/or edition number or version number. Only the cited
version 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 guaran
...