ETSI EN 303 145 V1.2.1 (2015-11)

ETSI EN 303 145 V1.2.1 (2015-11)






EUROPEAN STANDARD
Reconfigurable Radio Systems (RRS);
System Architecture and High Level Procedures for
Coordinated and Uncoordinated Use of TV White Spaces

---------------------- Page: 1 ----------------------
2 ETSI EN 303 145 V1.2.1 (2015-11)



Reference
REN/RRS-0144
Keywords
architecture, GLDB, system, white space

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 only prevailing document is the
print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat.
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
http://portal.etsi.org/tb/status/status.asp
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.

© European Telecommunications Standards Institute 2015.
All rights reserved.

TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members.
TM
3GPP and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI

---------------------- Page: 2 ----------------------
3 ETSI EN 303 145 V1.2.1 (2015-11)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definitions and abbreviations . 8
3.1 Definitions . 8
3.2 Abbreviations . 8
4 Functional Architecture . 9
4.1 Overview of Functional Architecture . 9
4.2 Coordinated Usage of White Spaces . 10
4.2.1 Spectrum coordination . 10
4.2.1.1 Overview . 10
4.2.1.2 Information service . 10
4.2.1.3 Management service. 10
4.2.2 High level operation sequence . 10
4.3 Uncoordinated Usage of White Spaces . 11
4.3.1 High level operation sequence . 11
5 Detailed Functional Architecture . 11
5.1 Architecture Description . 11
5.2 Functional Description of Components . 12
5.2.1 Database function . 12
5.2.2 Geo-location function . 12
5.2.3 Spectrum coordination function . 13
5.2.4 Control function . 14
5.2.5 Communication function . 14
5.2.6 Interface function . 14
5.3 Reference Points . 15
5.3.1 Reference point A: Between a GLDB and a CRS . 15
5.3.2 Reference point B: Between a CRS and a SC . 16
5.3.3 Reference point C: Between SCs . 16
5.3.4 Reference point D: Between a SC and a GLDB . 17
5.4 Potential Interaction of Functionality within the spectrum coordination function . 18
6 High Level Procedures . 19
6.1 Procedures for Coordinated Access of White Spaces . 19
6.1.1 Initialization procedures . 19
6.1.2 Coordination service subscription procedures . 19
6.1.2.1 Overview . 19
6.1.2.2 CRS subscription procedure . 19
6.1.2.3 CRS subscription update procedure . 20
6.1.2.4 CRS subscription change procedure . 21
6.1.3 Registration and authentication procedures . 21
6.1.3.1 Overview . 21
6.1.3.2 CRS registration procedure . 22
6.1.3.3 CRS registration update procedure . 22
6.1.3.4 Procedure for CRS deregistration from SC . 23
6.1.3.5 SC authentication and registration procedure . 23
6.1.3.6 SC de-authentication and de-registration procedure . 24
6.1.4 Channel Access Procedures . 25
6.1.4.1 Requesting CRS channel access procedure . 25
6.1.4.2 Requesting SC channel access procedure . 25
6.1.4.3 Providing available channel list procedure . 26
ETSI

---------------------- Page: 3 ----------------------
4 ETSI EN 303 145 V1.2.1 (2015-11)
6.1.4.4 Procedure of channel usage notification for subject CRS . 27
6.1.4.5 Procedure for GLDB to SC Notification for CRS operational parameters update . 27
6.1.4.6 CRS's operational parameters update request procedure from SC for incumbent protection . 28
6.1.4.7 Basic Channel Access Sequence . 30
6.1.4.8 Channel Access Sequence for Priority-Based Channel Assignment . 31
6.1.5 Information exchange procedures . 32
6.1.5.1 Providing coordination report procedure . 32
6.1.6 Sensing and Measurement Procedures and Operation Sequences . 33
6.1.6.1 Overview . 33
6.1.6.2 Requesting measurements procedure . 33
6.1.6.3 Providing periodic measurements procedure . 33
6.1.6.4 Providing single measurements procedure . 34
6.1.6.5 Non-Periodic measurements sequence . 35
6.1.6.6 Event-Triggered Measurement Sequence . 35
6.1.7 Reconfiguration Procedures and Operation Sequences . 37
6.1.7.1 Reconfiguration request from SC to CRS procedure . 37
6.1.7.2 Reconfiguration request from SC to GLDB procedure . 38
6.1.7.3 General reconfiguration sequence between coordinated CRSs . 38
6.1.7.4 CRS Request-Triggered Operational Parameter Reconfiguration . 40
6.1.7.5 CRS-Measurement Triggered Priority-Based Operational Parameter Reconfiguration . 43
6.1.7.6 General Priority-Based Channel Reconfiguration Sequence . 45
6.1.7.7 Management of uncoordinated CRSs considering priority usage of coordinated CRSs . 46
6.1.7.8 Priority Usage Request Considering Uncoordinated Channel Usage . 47
6.1.7.8.1 Overview . 47
6.1.7.8.2 Implementation Option A . 47
6.1.7.8.3 Implementation Option B . 49
6.1.7.9 Uncoordinated CRS Request Considering Priority Usage Coordinated CRS . 53
6.1.7.9.1 Overview . 53
6.1.7.9.2 Implementation Option A . 54
6.1.7.9.3 Implementation Option B . 54
6.1.7.10 Device parameter reconfiguration request from SC to CRS procedure. 56
6.1.7.11 General sequence of device parameter reconfiguration request from SC to CRS for facilitating
coexistence among CRSs . 57
6.1.8 Inter-SC procedures . 58
6.1.8.1 Reconfiguration request from master SC to CRS registered to slave SC procedure . 58
6.1.8.2 Master/slave SC configuration procedure . 59
6.1.8.3 Obtaining coordination set information from other SCs procedure . 60
6.1.8.4 Procedures for interfering SCs discovery . 61
6.1.8.4.1 Overview . 61
6.1.8.4.2 GLDB-aided potential interfering SCs discovery procedure . 61
6.1.8.4.3 Interfering SCs discovery procedure . 62
6.1.8.5 Negotiation between SCs procedure . 63
6.1.8.6 Operational Sequences for negotiation-based configuration of SCs . 64
6.2 Procedures for Uncoordinated Access of White Spaces . 65
7 Potential Implementation Architectures . 65
7.1 High level flow chart of entities . 65
7.1.1 CRS operation . 65
7.1.1.1 General description . 65
7.1.2 SC operation . 69
7.1.2.1 General description . 69
7.1.3 GLDB operation . 74
7.1.3.1 General description . 74
Annex A (informative): High Level Spectrum Management Algorithms for White Spaces . 77
A.1 Coexistence decision algorithms . 77
A.1.1 Algorithm based on co-channel sharing via CRS network geometry classification . 77
A.1.1.1 Introduction. 77
A.1.1.2 Network geometry classification . 77
A.1.1.3 Algorithm description . 81
A.1.2 Control of spectrum utilization based on the number of CRSs . 82
A.1.2.1 Introduction. 82
ETSI

---------------------- Page: 4 ----------------------
5 ETSI EN 303 145 V1.2.1 (2015-11)
A.1.2.2 Flowchart of the algorithm . 83
A.1.3 Control of coordinated CRSs for reduced transmit power fluctuation . 85
A.1.3.1 Introduction. 85
A.1.3.2 Flowchart of the algorithm . 85
A.1.4 Spectrum rearrangement among CRSs . 86
A.1.4.1 Introduction. 86
A.1.4.2 Flowchart of the algorithm . 87
A.1.5 Resource allocation based on channel ranking . 88
A.1.5.1 Introduction. 88
A.1.5.2 Flowchart of the algorithm . 89
A.2 Priority access management algorithms . 90
A.2.1 Control of non-priority access CRSs for CRS with priority access . 90
A.2.1.1 Introduction. 90
A.2.1.2 Flowchart of the algorithm . 91
Annex B (informative): Possible Physical implementation examples of logical functions in
coordinated usage of white spaces . 92
B.1 Possible Physical implementation examples . 92
B.1.1 Third party database management . 92
B.1.2 GLDB with spectrum coordination function . 92
B.1.3 CRS with spectrum coordination function . 93
B.1.4 Spectrum coordination for Multi-operators . 94
History . 95



ETSI

---------------------- Page: 5 ----------------------
6 ETSI EN 303 145 V1.2.1 (2015-11)
Intellectual Property Rights
IPRs essential or potentially essential to the present document 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 (http://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.
Foreword
This European Standard (EN) has been produced by ETSI Technical Committee Reconfigurable Radio Systems (RRS).

National transposition dates
Date of adoption of this EN: 6 November 2015
Date of latest announcement of this EN (doa): 29 February 2016
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 August 2016
Date of withdrawal of any conflicting National Standard (dow): 31 August 2016

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

---------------------- Page: 6 ----------------------
7 ETSI EN 303 145 V1.2.1 (2015-11)
1 Scope
The present document defines the system architecture for the use of spectrum by White Space Devices (WSDs),
specifically in the UHF TV Bands. The architecture stems from ETSI TS 102 946 [1]. The scope of the present
document is to define the architecture of a system which can allow operation of WSDs based on information obtained
from Geo-location databases. The architecture will consider both uncoordinated use of White Space (where there is no
attempt to manage the usage of channels by different WSDs) as well as coordinated use of White Space (where some
form of channel management and/or coexistence techniques are employed to efficiently use the White Space).
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
reference document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI TS 102 946: "Reconfigurable Radio Systems (RRS); System requirements for Operation in
UHF TV Band White Spaces".
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
reference 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] ETSI TR 103 067: "Reconfigurable Radio Systems (RRS); Feasibility study on Radio Frequency
(RF) performance for Cognitive Radio Systems operating in UHF TV band White Spaces".
[i.2] ECC Report 186: "Technical and operational requirements for the operation of white space devices
under geo-location approach".
™
[i.3] IEEE 802.22: "Cognitive Radio Wireless Regional Area Networks (WRAN) Medium Access
Control (MAC) and Physical Layer (PHY) Specifications: Policies and Procedures for Operation
in the Bands that Allow Spectrum Sharing where the Communications Devices may
Opportunistically Operate in the Spectrum of the Primary Service".
™
[i.4] IEEE 802.11: "Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY)
Specifications".
[i.5] ETSI EN 301 598 (V1.1.1): "White Space Devices (WSD);Wireless Access Systems operating in
the 470 MHz to 790 MHz TV broadcast band; Harmonized EN covering the essential requirements
of article 3.2 of the R&TTE Directive".
ETSI

---------------------- Page: 7 ----------------------
8 ETSI EN 303 145 V1.2.1 (2015-11)
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
coexistence: situation in which one radio system operates in an environment where another radio system having
potentially different characteristics (e.g. RAT) may be using the same or different channels, and both radio systems are
able to operate with some tolerable impact to each other
coordinated use of white spaces: case when each CRS uses available white space resources obtained with the help of
the geo-location database and with additional knowledge of spectrum usage by its neighbour CRSs by the SC
NOTE: The case in which the SC assigns directly channels to the CRSs is also part of the coordinated use of
white spaces.
coordination: ability of managing two or more CRSs to allow them to follow pre-determined operation policies such as
coexistence among coordinated CRSs
coordination report: information to the CRS to make coordination decisions on its operational parameters in the
information service
NOTE: This includes channel usage information, output power level, channel availability time, sensing
information, as well as some initial ranking of the available channels.
coordination set: set of CRSs which may affect the performance of the CRS they are associated to
Geo-Location Database (GLDB): database approved by the relevant national regulatory authority which can
communicate with WSDs and provide information on TVWS channel availability
NOTE 1: Information provided by a GLDB will include the available frequencies and associated maximum EIRP
values that the WSD is permitted to use which allow for protection of the incumbent service and are
derived from information provided by the WSD and the minimum
...

Draft ETSI EN 303 145 V1.1.5 (2015-07)






EUROPEAN STANDARD
Reconfigurable Radio Systems (RRS);
System Architecture and High Level Procedures for
Coordinated and Uncoordinated Use of TV White Spaces

---------------------- Page: 1 ----------------------
2 Draft ETSI EN 303 145 V1.1.5 (2015-07)



Reference
REN/RRS-0144
Keywords
architecture, GLDB, system, white space

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 only prevailing document is the
print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat.
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
http://portal.etsi.org/tb/status/status.asp
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.

© European Telecommunications Standards Institute 2015.
All rights reserved.

TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members.
TM
3GPP and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI

---------------------- Page: 2 ----------------------
3 Draft ETSI EN 303 145 V1.1.5 (2015-07)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definitions and abbreviations . 8
3.1 Definitions . 8
3.2 Abbreviations . 8
4 Functional Architecture . 9
4.1 Overview of Functional Architecture . 9
4.2 Coordinated Usage of White Spaces . 10
4.2.1 Spectrum coordination . 10
4.2.1.1 Overview . 10
4.2.1.2 Information service . 10
4.2.1.3 Management service. 10
4.2.2 High level operation sequence . 10
4.3 Uncoordinated Usage of White Spaces . 11
4.3.1 High level operation sequence . 11
5 Detailed Functional Architecture . 11
5.1 Architecture Description . 11
5.2 Functional Description of Components . 12
5.2.1 Database function . 12
5.2.2 Geo-location function . 12
5.2.3 Spectrum coordination function . 13
5.2.4 Control function . 14
5.2.5 Communication function . 14
5.2.6 Interface function . 14
5.3 Reference Points . 15
5.3.1 Reference point A: Between a GLDB and a CRS . 15
5.3.2 Reference point B: Between a CRS and a SC . 16
5.3.3 Reference point C: Between SCs . 16
5.3.4 Reference point D: Between a SC and a GLDB . 17
5.4 Potential Interaction of Functionality within the spectrum coordination function . 18
6 High Level Procedures . 19
6.1 Procedures for Coordinated Access of White Spaces . 19
6.1.1 Initialization procedures . 19
6.1.2 Coordination service subscription procedures . 19
6.1.2.1 Overview . 19
6.1.2.2 CRS subscription procedure . 19
6.1.2.3 CRS subscription update procedure . 20
6.1.2.4 CRS subscription change procedure . 21
6.1.3 Registration and authentication procedures . 21
6.1.3.1 Overview . 21
6.1.3.2 CRS registration procedure . 22
6.1.3.3 CRS registration update procedure . 22
6.1.3.4 Procedure for CRS deregistration from SC . 23
6.1.3.5 SC authentication and registration procedure . 23
6.1.3.6 SC de-authentication and de-registration procedure . 24
6.1.4 Channel Access Procedures . 25
6.1.4.1 Requesting CRS channel access procedure . 25
6.1.4.2 Requesting SC channel access procedure . 25
6.1.4.3 Providing available channel list procedure . 26
ETSI

---------------------- Page: 3 ----------------------
4 Draft ETSI EN 303 145 V1.1.5 (2015-07)
6.1.4.4 Procedure of channel usage notification for subject CRS . 27
6.1.4.5 Procedure for GLDB to SC Notification for CRS operational parameters update . 27
6.1.4.6 CRS's operational parameters update request procedure from SC for incumbent protection . 28
6.1.4.7 Basic Channel Access Sequence . 30
6.1.4.8 Channel Access Sequence for Priority-Based Channel Assignment . 31
6.1.5 Information exchange procedures . 32
6.1.5.1 Providing coordination report procedure . 32
6.1.6 Sensing and Measurement Procedures and Operation Sequences . 33
6.1.6.1 Overview . 33
6.1.6.2 Requesting measurements procedure . 33
6.1.6.3 Providing periodic measurements procedure . 33
6.1.6.4 Providing single measurements procedure . 34
6.1.6.5 Non-Periodic measurements sequence . 35
6.1.6.6 Event-Triggered Measurement Sequence . 35
6.1.7 Reconfiguration Procedures and Operation Sequences . 37
6.1.7.1 Reconfiguration request from SC to CRS procedure . 37
6.1.7.2 Reconfiguration request from SC to GLDB procedure . 38
6.1.7.3 General reconfiguration sequence between coordinated CRSs . 38
6.1.7.4 CRS Request-Triggered Operational Parameter Reconfiguration . 40
6.1.7.5 CRS-Measurement Triggered Priority-Based Operational Parameter Reconfiguration . 43
6.1.7.6 General Priority-Based Channel Reconfiguration Sequence . 45
6.1.7.7 Management of uncoordinated CRSs considering priority usage of coordinated CRSs . 46
6.1.7.8 Priority Usage Request Considering Uncoordinated Channel Usage . 47
6.1.7.8.1 Overview . 47
6.1.7.8.2 Implementation Option A . 47
6.1.7.8.3 Implementation Option B . 49
6.1.7.9 Uncoordinated CRS Request Considering Priority Usage Coordinated CRS . 53
6.1.7.9.1 Overview . 53
6.1.7.9.2 Implementation Option A . 54
6.1.7.9.3 Implementation Option B . 54
6.1.7.10 Device parameter reconfiguration request from SC to CRS procedure. 56
6.1.7.11 General sequence of device parameter reconfiguration request from SC to CRS for facilitating
coexistence among CRSs . 57
6.1.8 Inter-SC procedures . 58
6.1.8.1 Reconfiguration request from master SC to CRS registered to slave SC procedure . 58
6.1.8.2 Master/slave SC configuration procedure . 59
6.1.8.3 Obtaining coordination set information from other SCs procedure . 60
6.1.8.4 Procedures for interfering SCs discovery . 61
6.1.8.4.1 Overview . 61
6.1.8.4.2 GLDB-aided potential interfering SCs discovery procedure . 61
6.1.8.4.3 Interfering SCs discovery procedure . 62
6.1.8.5 Negotiation between SCs procedure . 63
6.1.8.6 Operational Sequences for negotiation-based configuration of SCs . 64
6.2 Procedures for Uncoordinated Access of White Spaces . 65
7 Potential Implementation Architectures . 65
7.1 High level flow chart of entities . 65
7.1.1 CRS operation . 65
7.1.1.1 General description . 65
7.1.2 SC operation . 69
7.1.2.1 General description . 69
7.1.3 GLDB operation . 74
7.1.3.1 General description . 74
Annex A (informative): High Level Spectrum Management Algorithms for White Spaces . 77
A.1 Coexistence decision algorithms . 77
A.1.1 Algorithm based on co-channel sharing via CRS network geometry classification . 77
A.1.1.1 Introduction. 77
A.1.1.2 Network geometry classification . 77
A.1.1.3 Algorithm description . 81
A.1.2 Control of spectrum utilization based on the number of CRSs . 82
A.1.2.1 Introduction. 82
ETSI

---------------------- Page: 4 ----------------------
5 Draft ETSI EN 303 145 V1.1.5 (2015-07)
A.1.2.2 Flowchart of the algorithm . 83
A.1.3 Control of coordinated CRSs for reduced transmit power fluctuation . 85
A.1.3.1 Introduction. 85
A.1.3.2 Flowchart of the algorithm . 85
A.1.4 Spectrum rearrangement among CRSs . 86
A.1.4.1 Introduction. 86
A.1.4.2 Flowchart of the algorithm . 87
A.1.5 Resource allocation based on channel ranking . 88
A.1.5.1 Introduction. 88
A.1.5.2 Flowchart of the algorithm . 89
A.2 Priority access management algorithms . 90
A.2.1 Control of non-priority access CRSs for CRS with priority access . 90
A.2.1.1 Introduction. 90
A.2.1.2 Flowchart of the algorithm . 91
Annex B (informative): Possible Physical implementation examples of logical functions in
coordinated usage of white spaces . 92
B.1 Possible Physical implementation examples . 92
B.1.1 Third party database management . 92
B.1.2 GLDB with spectrum coordination function . 92
B.1.3 CRS with spectrum coordination function . 93
B.1.4 Spectrum coordination for Multi-operators . 94
History . 95



ETSI

---------------------- Page: 5 ----------------------
6 Draft ETSI EN 303 145 V1.1.5 (2015-07)
Intellectual Property Rights
IPRs essential or potentially essential to the present document 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 (http://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.
Foreword
This draft European Standard (EN) has been produced by ETSI Technical Committee Reconfigurable Radio Systems
(RRS), and is now submitted for the combined Public Enquiry and Vote phase of the ETSI standards EN Approval
Procedure.

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): 6 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

---------------------- Page: 6 ----------------------
7 Draft ETSI EN 303 145 V1.1.5 (2015-07)
1 Scope
The present document defines the system architecture for the use of spectrum by White Space Devices (WSDs),
specifically in the UHF TV Bands. The architecture stems from ETSI TS 102 946 [1]. The scope of the present
document is to define the architecture of a system which can allow operation of WSDs based on information obtained
from Geo-location databases. The architecture will consider both uncoordinated use of White Space (where there is no
attempt to manage the usage of channels by different WSDs) as well as coordinated use of White Space (where some
form of channel management and/or coexistence techniques are employed to efficiently use the White Space).
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
reference document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI TS 102 946: "Reconfigurable Radio Systems (RRS); System requirements for Operation in
UHF TV Band White Spaces".
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
reference 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] ETSI TR 103 067: "Reconfigurable Radio Systems (RRS); Feasibility study on Radio Frequency
(RF) performance for Cognitive Radio Systems operating in UHF TV band White Spaces".
[i.2] ECC Report 186: "Technical and operational requirements for the operation of white space devices
under geo-location approach".
™
[i.3] IEEE 802.22: "Cognitive Radio Wireless Regional Area Networks (WRAN) Medium Access
Control (MAC) and Physical Layer (PHY) Specifications: Policies and Procedures for Operation
in the Bands that Allow Spectrum Sharing where the Communications Devices may
Opportunistically Operate in the Spectrum of the Primary Service".
™
[i.4] IEEE 802.11: "Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY)
Specifications".
[i.5] ETSI EN 301 598 (V1.1.1): "White Space Devices (WSD);Wireless Access Systems operating in
the 470 MHz to 790 MHz TV broadcast band; Harmonized EN covering the essential requirements
of article 3.2 of the R&TTE Directive".
ETSI

---------------------- Page: 7 ----------------------
8 Draft ETSI EN 303 145 V1.1.5 (2015-07)
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
coexistence: situation in which one radio system operates in an environment where another radio system having
potentially different characteristics (e.g. RAT) may be using the same or different channels, and both radio systems are
able to operate with some tolerable impact to each other
coordinated use of white spaces: case when each CRS uses available white space resources obtained with the help of
the geo-location database and with additional knowledge of spectrum usage by its neighbour CRSs by the SC
NOTE: The case in which the SC assigns directly channels to the CRSs is also part of the coordinated use of
white spaces.
coordination: ability of managing two or more CRSs to allow them to follow pre-determined operation policies such as
coexistence among coordinated CRSs
coordination report: information to the CRS to make coordination decisions on its operational parameters in the
information service
NOTE: This includes channel usage information, output power level, channel availability time, sensing
information, as well as some initial ranking of the available channels.
coordination set: set of CRSs which may affect the performance of the CRS they are associated to
Geo-Location Database (GLDB): database approved by the relevant national regulatory authority which can
communicate with WSDs and provide information on TVWS channel availability
NOTE 1: Information provided by a GLDB will include the available frequencies and associated maximum EIRP
value
...