ETSI TS 103 652-2 V1.1.1 (2020-01)

Reconfigurable Radio Systems (RRS); evolved Licensed Shared Access (eLSA); Part 2: System architecture and high-level procedures

DTS/RRS-0151

General Information

• Status: Published
• Publication Date: 23-Jan-2020
• Technical Committee: RRS 1 - RRS System Aspects & Cognitive functionalities
• Current Stage: 12 - Completion
• Due Date: 08-Jan-2020
• Completion Date: 24-Jan-2020

Standards Content (Sample)

ETSI TS 103 652-2 V1.1.1 (2020-01)






TECHNICAL SPECIFICATION
Reconfigurable Radio Systems (RRS);
evolved Licensed Shared Access (eLSA);
Part 2: System architecture and high-level procedures

---------------------- Page: 1 ----------------------
2 ETSI TS 103 652-2 V1.1.1 (2020-01)



Reference
DTS/RRS-0151
Keywords
architecture, LSA spectrum resource, network,
radio

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

Tel.: [phone]  Fax: [phone]

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

---------------------- Page: 2 ----------------------
3 ETSI TS 103 652-2 V1.1.1 (2020-01)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 6
3 Definition of terms, symbols and abbreviations . 7
3.1 Terms . 7
3.2 Symbols . 7
3.3 Abbreviations . 7
4 eLSA supported spectrum access schemes. 7
4.1 Introduction . 7
4.2 eLSA Architecture Reference Model . 8
4.2.0 introduction . 8
4.2.1 Logical Elements . 9
4.2.2 Reference Points . 9
4.3 High-Level Functions . 9
4.3.0 introduction . 9
4.3.1 Information Entry Function . 10
4.3.2 Information Processing Function . 10
4.3.3 Information Mapping Function . 10
4.3.4 Reporting Function . 10
4.3.5 eLSA Information Exchange Function . 10
4.3.6 System Support Functions Group . 10
4.3.7 System Management Functions Group . 11
4.4 Mapping of High-Level Functions to Logical Elements . 11
5 eLSA Functional Description and Information Flows . 11
1
5.1 Introduction . 11
5.2 Protocol Stacks . 12
5.3 eLSA Interface Management Functions . 12
1
5.4 eLSA Protocol Elements . 12
1
5.4.1 Identities . 12
5.4.2 eLSA Spectrum Resource Availability Information . 12
5.5 High Level Procedures . 13
5.5.1 Introduction. 13
5.5.2 Registration Procedure . 13
5.5.3 Deregistration Procedure . 14
5.5.4 eLSR Grant Procedure . 15
5.5.5 eLSR Grant Relinquishment Procedure . 15
5.5.6 eLSRAI Request Procedure . 16
5.5.7 eLSRAI Notification Procedure . 17
5.5.8 eLSRAI Confirmation Procedure . 17
5.5.9 Connectivity Check Notification Procedure . 18
5.5.10 Connectivity Check Request Procedure . 18
5.6 Procedure Flows . 19
5.6.1 Introduction. 19
5.6.2 eLC Operation Start-up for granted eLSR . 19
5.6.3 eLC Operation Start-up for non-granted eLSR . 20
5.6.4 eLR Notification of new eLSRAI . 21
5.6.5 eLSRAI Synchronization . 22
5.6.6 eLC Request for new eLSRAI with optional eLR Notification . 23
ETSI

---------------------- Page: 3 ----------------------
4 ETSI TS 103 652-2 V1.1.1 (2020-01)
6 eLSA Failure Management . 23
7 eLSA Deployment Scenario Rules . 24
Annex A (informative): eLSA Operational Use Cases . 25
A.0 Introduction . 25
A.1 Pre-checking of Spectrum Availability . 25
A.2 Activate eLSA Repository for eLSA operation . 25
A.3 Input of the Sharing Framework, Sharing Arrangement and eLSA License/Lease information to
the eLSA Repository . 26
A.4 VSP activates eLSA support operation . 26
A.5 VSP starts to operate in the available eLSA spectrum resources . 27
A.6 VSP receives information on eLSR Spectrum Resource Availability Information updates when
license/lease expires . 27
A.7 VSP operates in Detached Operation Mode (DOM) . . 28
A.8 Deployment of VSPs. With nomadic and temporary operation . 29
Annex B (informative): Guidance for LSA , LSA , eLSA and eLSA . 31
2 3 4 5
B.1 Introduction . 31
B.2 NRA-Related Guidance (LSA ) . 31
2
B.3 Incumbent-related Guidance (LSA ) . 31
3
B.4 VSP-related Guidance (LSA ) . 32
5
Annex C (informative): Deployment Architecture Examples . 33
C.1 Introduction . 33
C.2 Examples . 33
C.2.1 eLSA Controller in the VSP domain . 33
C.2.2 eLSA Controller outside the VSP domain . 33
C.2.3 eLSA Controller connecting to multiple eLSA Repositories . 33
C.2.4 eLSA Controller for multiple MFCNs in VSP domain . 34
C.2.5 Proxy eLSA Controller . 34
History . 36


ETSI

---------------------- Page: 4 ----------------------
5 ETSI TS 103 652-2 V1.1.1 (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 Technical Specification (TS) has been produced by ETSI Technical Committee Reconfigurable Radio Systems
(RRS).
The present document is part 2 of a multi-part deliverable. Full details of the entire series can be found in part 1 ETSI
TS 103 652-1 [1].
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: 5 ----------------------
6 ETSI TS 103 652-2 V1.1.1 (2020-01)
1 Scope
The present document specifies the system architecture for the operation of an Evolved Licensed Shared Access (eLSA)
System, enabling the provision of spectrum access to many local high-quality wireless networks in dedicated licensed
and leasing scenarios.
The eLSA system architecture specification will include the identification and definition of the logical functional
elements, interfaces, reference points, the mapping of functions to logical entities as well as the definition of the high-
level procedures and information flows enabling assignment and handling of spectrum for the different scenarios
considered.
The present document has been developed following, and in accordance with, the system requirements for eLSA
captured in ETSI TS 103 652-1 [1] and the feasibility study on temporary spectrum access for local high-quality
wireless networks as documented in ETSI TR 103 588 [i.1].
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI TS 103 652-1: "Reconfigurable Radio Systems (RRS); evolved Licensed Shared Access
(eLSA); Part 1: System requirements".
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] ETSI TR 103 588: "Reconfigurable Radio Systems (RRS); Feasibility study on temporary
spectrum access for local high-quality wireless networks".
[i.2] ETSI TS 103 235: "Reconfigurable Radio Systems (RRS); System architecture and high level
procedures for operation of Licensed Shared Access (LSA) in the 2 300 MHz - 2 400 MHz band".
[i.3] ECC Recommendation (15)04: "Guidance for the implementation of a sharing framework between
MFCN and PMSE within 2300-2400 MHz".
[i.4] CEPT Report 58: "Technical sharing solutions for the shared use of the 2300-2400 MHz band for
WBB and PMSE".
ETSI

---------------------- Page: 6 ----------------------
7 ETSI TS 103 652-2 V1.1.1 (2020-01)
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
allowance zone: geographical area within which an eLSA Licensee is allowed to operate radio transmitters on its
assigned spectrum resource
NOTE 1: An allowance zone is defined using specific measurement quantities and thresholds, e.g. a maximum field
strength level expressed in dBµ V/m/MHz, along the border of its geographical area.
NOTE 2: An allowance zone is normally applicable for a defined frequency range and time period.
3.2 Symbols
Void.
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
3GPP Third Generation Public Private Partnership
AV Audio-Visual
AV-VSP Audio-Visual Vertical Sector Player
DOM Detached Operation Mode
eLC evolved eLSA Controller
eLR evolved LSA Repository
eLSA evolved Licensed Shared Access
eLSR evolved LSA Spectrum Resource
eLSRAI evolved LSA Spectrum Resource Availability Information
IEM In Ear Monitoring
LC LSA Controller
LR LSA Repository
LSA Licensed Shared Access
LSRAI LSA Spectrum Resource Availability Information
MFCN Mobile/Fixed Communication Network
NOTE: MFCN is used in the present document to refer to a local high-quality wireless network [i.1].
MNO Mobile Network Operator
NRA National Regulatory Authority
PMSE Programme Making and Special Events
VSP Vertical Sector Player
4 eLSA supported spectrum access schemes
4.1 Introduction
ETSI TR 103 588 [i.1] concept identified three spectrum access schemes for MFCN operated by vertical sector
operators (aka local high-quality wireless networks):
• Local area licensing: NRA provides a license to a vertical sector player to operate in a given frequency
allocation in a defined area and for a defined period of time. The vertical sector player (licensee) shall apply
the required operational conditions and restrictions established by the NRA.
ETSI

---------------------- Page: 7 ----------------------
8 ETSI TS 103 652-2 V1.1.1 (2020-01)
• Local area Leasing: Incumbents (including MNOs) can lease out part of their licensed spectrum to vertical
sector players (lessees) to operate MFCNs in a defined area and for a defined period of time. An Incumbent
(lessor) and a vertical sector player (lessee) agrees through a leasing arrangement, where the existing rules and
operational conditions given in the incumbent's license is included (the incumbent is still responsible for the
fulfilment of those rules/conditions to the NRA). The leasing arrangement can include additional operational
conditions and restrictions for the use of the leased spectrum. An additional license for vertical sector players
is not needed.
• Network as a Service: MFCNs of a vertical sector player are instantiated as local network service areas
(e.g. network slices of a 3GPP network) within the incumbent (e.g. MNO) domain. The incumbent as license
holder offers infrastructure, spectrum and coexistence management service to the MFCNs. An additional
license for vertical sector players is not needed.
Figure 1 illustrates the relationships between the National Regulatory Administration (NRA), the vertical sector player,
and the incumbent (e.g. MNO) for the different spectrum allocation and service provisioning schemes.

Figure 1: Relationship models for eLSA spectrum access schemes.
eLSA aims to evolve the LSA architecture [i.2] to satisfy the local area spectrum demands covering both short-term and
long-term allocations of vertical sector players. In doing so, eLSA targets a system architecture as close as possible to
LSA maximizing synergies at both implementation and regulatory levels.
Annex C provides for two of the spectrum access schemes identified in [i.1], local area licensing and local area leasing,
an architectural instantiation of eLSA, the associated functionality and a list of the technical evolvements compared to
the LSA reference architecture model [i.2]. The Network as a Service option will not be further specified in the present
document as it is handled within the license holder domain.
4.2 eLSA Architecture Reference Model
4.2.0 introduction
The eLSA Architecture Reference model is shown in Figure 2. It is based on the architecture reference model for LSA
defined in [i.2] and supports additionally the spectrum access schemes for local area licensing and the local area leasing.
Reference points shown in dashed format indicate that the respective interfaces and corresponding interface functions
will not be defined in the present document, although some guidance is provided.
ETSI

---------------------- Page: 8 ----------------------
9 ETSI TS 103 652-2 V1.1.1 (2020-01)

Figure 2: eLSA Architecture Reference Model
4.2.1 Logical Elements
eLSA Repository (eLR): The eLR supports the entry and storage of information describing the shared spectrum
resources as well as Incumbent's and VSP's usage and protection requirements. It is able to convey spectrum resource
information including related availability information to eLSA Controllers. The eLR also provides means for the NRA
to monitor the operation of the eLSA System [see ETSI TS 103 652-1 [1]] and to provide the eLSA System with
information on local area licensing and local area leasing. The eLR ensures that the eLSA system operates in
conformance with the Sharing Framework and the licensing regime and may in addition realize any non-regulatory
details of the Sharing Arrangement [1].
eLSA Controller (eLC): The eLC is associated with the VSP's domain. The eLC enables the VSP to obtain eLSA
spectrum resource and availability information from the eLR. The eLC interacts with the VSP's MFCN in order to
support the mapping of spectrum resource and availability information into appropriate radio transmitter configurations
and receive the respective confirmation from the MFCN.
4.2.2 Reference Points
eLSA : Reference point between eLR and eLC.
1
eLSA : Reference point for Administration/NRA interaction with the eLR. Some of the functionality
2
associated with this reference point is described in clause B.2.
eLSA : Reference point for Incumbent interaction with the eLR. Some of the functionality associated with
3
this reference point is described in clause B.3.
eLSA : Reference point between eLC and MFCN.
4
eLSA : Reference point for VSP interaction with the eLR. Some of the functionality associated with this
5
reference point is described in clause B.4.
4.3 High-Level Functions
4.3.0 introduction
This clause lists and describes the high-level functions performed by the eLSA System. The high-level functions cover
the aspects of eLSA System operation in line with requirements of ETSI TS 103 652-1 [1].
ETSI

---------------------- Page: 9 ----------------------
10 ETSI TS 103 652-2 V1.1.1 (2020-01)
4.3.1 Information Entry Function
The information entry function allows the entry and storage of information that is needed for the operation of the eLSA
System, including the following:
• Sharing Framework information (set of sharing rules or sharing conditions for the band, information on
spectrum that can be made available for shared use and the corresponding technical and operational conditions
for its use, identification of incumbents).
• eLSA License and Leasing information (VSP identity and related information).
• Sharing Arrangement information for each Incumbent and VSP (set of practical details for sharing an eLSA
spectrum resource, whereby eLSA spectrum resource may be used by Incumbent or VSP).
• Incumbent's eLSA spectrum resource usage and protection requirements.
• The function also supports the verification of inputs (consistency with Sharing Framework/Arrangement).
4.3.2 Information Processing Function
This function supports the derivation of eLSRAI for each VSP domain, to be provided to the Information Exchange
function and the Reporting Function. The eLSRAI is derived based on the data collected by the Information Entry
Function. The function further supports the processing of VSP domain acknowledgment information.
The above functionality also includes support for multiple Incumbents and multiple VSP domains, scheduled and
on-demand modes of operation, and logging of processing information.
4.3.3 Information Mapping Function
The information mapping function receives eLSRAI, confirms reception and initiates respective operations in the
MFCN. It also sends acknowledgements to the information exchange function (for forwarding to the information
processing function) when changes in the MFCN are processed.
NOTE: The respective interaction with the MFCN is out of scope of the present document.
4.3.4 Reporting Function
The reporting function is responsible to create and provide reports regarding the eLSA System operation to
Administration/NRA, Incumbent(s), and/or VSP(s) on an on-demand or scheduled basis, e.g. pre-checking of spectrum
resource availability for a local area.
4.3.5 eLSA Information Exchange Function
The information exchange function supports communication mechanisms, internal to the eLSA System, to exchange
spectrum resource and availability information, and related acknowledgement information.
4.3.6 System Support Functions Group
The system support functions comprise:
Security Support Function: support of authentication and authorization as well as services to support integrity and
confidentiality of data.
Robustness and Reliability Function: support of mechanisms to maintain robustness and reliability against failures
and malicious attacks.
Fault Management Function: support of:
• Failure detection in the eLSA System.
• Subsequent generation and delivery of respective fa
...