ETSI GR F5G 002 V1.1.1 (2021-02)

Fifth Generation Fixed Network (F5G); F5G Use Cases Release #1

DGR/F5G-002_use_cases

General Information

• Status: Not Published
• Technical Committee: F5G - Fifth Generation Fixed Network
• Current Stage: 12 - Completion
• Due Date: 08-Jan-2021
• Completion Date: 02-Feb-2021

Standards Content (Sample)

GROUP REPORT
Fifth Generation Fixed Network (F5G);
F5G Use Cases
Release #1
Disclaimer
The present document has been produced and approved by the Fifth Generation Fixed Network ETSI Industry Specification
Group (ISG) and represents the views of those members who participated in this ISG.
It does not necessarily represent the views of the entire ETSI membership.

Release #1 2 ETSI GR F5G 002 V1.1.1 (2021-02)

Reference
DGR/F5G-002_use_cases
Keywords
customer premises networks, F5G, fixed
networks, use case
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ETSI
Release #1 3 ETSI GR F5G 002 V1.1.1 (2021-02)
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 Definition of terms, symbols and abbreviations . 7
3.1 Terms . 7
3.2 Symbols . 7
3.3 Abbreviations . 8
4 Overview . 9
5 Categorization of use cases . 10
5.1 Driving the characteristics of F5G. 10
5.2 Application Area Perspective . 11
6 Description of use cases . 12
6.0 Introduction . 12
6.1 Use case #1: Cloud Virtual Reality . 13
6.1.1 Use case context . 13
6.1.2 Description of the use case . 13
6.1.2.1 Overview . 13
6.1.2.2 Motivation . 14
6.1.2.3 Pre-conditions . 15
6.1.2.4 Operational flow of actions . 15
6.2 Use case #2: High Quality Private Line . 16
6.2.1 Use case context . 16
6.2.2 Description of the use case . 16
6.2.2.1 Overview . 16
6.2.2.1.1 General . 16
6.2.2.1.2 Network Components . 16
6.2.2.1.3 Cloud-based services . 18
6.2.2.2 Motivation . 20
6.2.2.3 Pre-conditions . 20
6.2.2.4 Operational flow of actions . 20
6.3 Use case #3: High quality low cost private line for small and medium enterprises . 21
6.3.1 Use case context . 21
6.3.2 Description of the use case . 21
6.3.2.1 Overview . 21
6.3.2.2 Motivation . 22
6.3.2.3 Pre-conditions . 22
6.3.2.4 Operational flow of actions . 22
6.4 Use case #4: PON on-premises . 23
6.4.1 Use case context . 23
6.4.2 Description of the use case . 23
6.4.2.1 Overview . 23
6.4.2.1.1 General . 23
6.4.2.1.2 PON for in-home networking . 24
6.4.2.1.3 PON as a supplement in FTTB/C for Apartment houses in dense residential areas . 24
6.4.2.2 Considerations for on-premise devices . 25
6.4.2.3 Motivation . 25
6.4.2.4 Pre-conditions . 26
6.5 Use case #5: Passive optical LAN . 26
6.5.1 Use case context . 26
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6.5.2 Description of the use case . 26
6.5.2.1 Overview . 26
6.5.2.1.1 General . 26
6.5.2.1.2 Hotel . 28
6.5.2.1.3 Stadium . 29
6.5.2.1.4 Holiday Resort . 30
6.5.2.1.5 Railways/Highways . 30
6.5.2.1.6 Shopping Centre . 31
6.5.2.2 Motivation . 31
6.5.2.3 Pre-condition . 31
6.6 Use case #6: PON for Industrial Manufacturing . 31
6.6.1 Use case context . 31
6.6.2 Description of the use case . 32
6.6.2.1 Overview . 32
6.6.2.2 Motivation . 36
6.6.2.3 Pre-conditions . 36
6.7 Use case #7: Using PON for City Public Service . 37
6.7.1 Use case context . 37
6.7.2 Description of the use case . 37
6.7.2.1 Overview . 37
6.7.2.2 Motivation . 38
6.7.2.3 Pre-conditions . 38
6.8 Use case #8: Multiple Access Aggregation over PON . 38
6.8.1 Use case context . 38
6.8.2 Description of the use case . 38
6.8.2.1 Overview . 38
6.8.2.2 Motivation . 41
6.8.2.3 Pre-conditions . 41
6.9 Use case #9: Extend PON to legacy Ethernet Uplink . 42
6.9.1 Use case context . 42
6.9.2 Description of the use case . 42
6.9.2.1 Overview . 42
6.9.2.1.1 General . 42
6.9.2.1.2 DSLAMs - Switches - Routers . 42
6.9.2.1.3 Wifi AP backhaul . 43
6.9.2.1.4 Video surveillance backhaul . 43
6.9.2.1.5 General considerations . 44
6.9.2.2 Motivation . 44
6.9.2.3 Pre-condition . 44
6.10 Use case #10: Scenario based broadband . 44
6.10.1 Use case context . 44
6.10.2 Description of the use case . 45
6.10.2.1 Overview . 45
6.10.2.1.1 General . 45
6.10.2.1.2 Gaming broadband . 46
6.10.2.1.3 Education broadband . 47
6.10.2.1.4 Home office broadband . 47
6.10.2.1.5 PON leased line . 48
6.10.2.2 Motivation . 49
6.10.2.3 Pre-conditions . 49
6.11 Use case #11: Enhanced traffic monitoring and network control in Intelligent Access Network . 49
6.11.1 Use case context . 49
6.11.2 Description of the use case . 50
6.11.2.1 Overview . 50
6.11.2.2 Motivation . 51
6.11.2.3 Pre-conditions . 51
6.11.2.4 Operational flow of actions . 51
6.12 Use case #12: On Demand High Quality Transport for Real time applications . 52
6.12.1 Use case context . 52
6.12.2 Description of the use case . 52
6.12.2.1 Overview . 52
6.12.2.2 Motivation . 54
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6.12.2.3 Pre-conditions . 54
6.13 Use case #13: Remote Attestation for Secured Network Elements . 54
6.13.1 Use case context . 54
6.13.2 Description of the use case . 54
6.13.2.1 Overview . 54
6.13.2.2 Motivation . 55
6.13.2.3 Pre-conditions . 56
6.13.2.4 Operational flow of actions . 56
6.14 Use case #14: Digitalized ODN/FTTX . 57
6.14.1 Use case context . 57
6.14.2 Description of the use case . 57
6.14.2.1 Overview . 57
6.14.2.2 Motivation . 58
6.14.2.3 Pre-conditions . 58
6.14.2.4 ODN deployment operation flow . 58
7 Relationship with other F5G work items. 59
History . 60

ETSI
Release #1 6 ETSI GR F5G 002 V1.1.1 (2021-02)
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 Group Report (GR) has been produced by ETSI Industry Specification Group (ISG) Fifth Generation Fixed
Network (F5G).
Modal verbs terminology
In the present document "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.

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Release #1 7 ETSI GR F5G 002 V1.1.1 (2021-02)
1 Scope
The present document describes a first set of use cases to be enabled by the Fifth Generation Fixed Network (F5G).
These use cases include services to consumers and enterprises as well as functionalities to optimize the management of
the Fifth Generation Fixed Network. The use cases will be used as input to a gap analysis and a technology landscape
study, aiming to extract technical requirements needed for their implementations. Fourteen use cases are selected based
on their impact. The context and description of each use case are presented in the present document.
2 References
2.1 Normative references
Normative references are not applicable in the present document.
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 GR F5G 001: "Fifth Generation Fixed Network (F5G); F5G Generation Definition
Release #1".
rd
[i.2] 3GPPP TR 38.801: "3 Generation Partnership Project;Technical Specification Group Radio
Access Network;Study on new radio access technology: Radio access architecture and interfaces
(Release 14)".
[i.3] Recommendation ITU-T G.987: "10-Gigabit-capable passive optical network (XG-PON) systems:
Definitions, abbreviations and acronyms".
[i.4] ETSI GS F5G 003: "F5G Technology Landscape F5G Technology Landscape".
[i.5] ETSI GS F5G 004: "F5G Network Architecture Specification F5G Network Architecture
Specification".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
rendering: process of generating a photorealistic or non-photorealistic image from a 2D or 3D model by means of a
computer program
3.2 Symbols
Void.
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Release #1 8 ETSI GR F5G 002 V1.1.1 (2021-02)
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AI Artificial Intelligence
AP Access Point
API Application Programming Interface
AR Augmented Reality
ATM Automatic Teller Machine
B2B Business to Business
B2C Business to Customer
BBU Base Band Unit
BNG Broadband Network Gateway
CAPEX CAPital EXpenditure
CCTV Closed Circuit TeleVision
CDN Content Delivery Network
CE Customer Edge
CO Central Office
CPE Customer Premise Equipment
CR Core Router
CT Communication Technology
CU Central Unit
DBA Dynamic Bandwidth Allocation
DC Data Centre
DIM Dynamic Integrity Measurement
DSLAM Digital Subscriber Line Access Multiplexer
DU Distributed Unit
E2E End to End
EMI Electro-Magnetic Interference
EPC Evolved Packet Core
F5G Fifth Generation Fixed Network
FAT Fibre Access Terminal
FFC Full-Fibre Connection
FGW Fibre GateWay
FPS First Person Shooter
FTTB Fibre To The Building
FTTB/C Fibre To The Building/Curb
FTTH Fibre To The Home
FTTR Fibre To The Room
GE Gigabit Ethernet
GPON Gigabit-capable Passive Optical Network
GRE Guaranteed Reliable Experience
HD High Definition
HDTV High Definition TeleVision
HIS Hospital Information System
HQ HeadQuter
HSI High Speed Internet
HW HardWare
IIoT Industrial Internet of Things
IP Internet Protocol
IPTV Internet Protocol TeleVision
IT Information Technology
LAN Local Area Network
MAC Media Access Control
MAN Metro Area Network
MDU Multiple Dwelling Unit
MOBA Multiplayer Online Battle Arena
MOOC Massive Open Online Course
NFV Network Functions Virtualisation
NMS Network Management System
OA Office Automation
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OAM Operation And Maintenance
ODN Optical Distribution Network
OLT Optical Line Termination
ONT Optical Network Terminal
ONU Optical Network Unit
OPEX OPerational EXpenses
OSS Operation Support System
OT Operational Technology
OTN Optical Transport Network
P2P Point to Point
PACS Picture Archiving and Communication Systems
PC Personal Computer
PLC Programmable Logical Controller
PoE Power over Ethernet
POL Passive Optical LAN
PON Passive Optical Network
PoP Point of Presence
RA Remote Attestation
RAN Radio Access Network
RRH Radio Remote Head
RTT Round Trip Time
RTU Remote Teminal Unit
RU Radio Unit
SDN Software-Defined Network
SD-WAN Software-Defined Wide Area Network
SFP Small Form Pluggable
SLA Service-Level Agreement
SME Small and Medium Enterprises
STP Shielded Twisted Pair
TCP Transmission Control Protocol
TPM Trusted Platform Module
TSN Time-Sensitive Networking
TV TeleVision
UAC User Application Client
UAS User Application Server
UHD Ultra-High Definition
URLLC Ultra-Reliable and Low Latency Communications
UTP Unshielded Twisted Pair
VLAN Virtual Local Area Network
VoIP Voice over Internet Protocol
VPN Virtual Private Network
VR Virtual Reality
VR/AR Virtual Reality/Augmented Reality
VTM Video Teller Machine
WAP Wireless Access Points
WIFI Wireless Fidelity
WLAN Wireless Local Area Network
XG-PON 10-Gigabit-capable Passive Optical Network
XGS-PON 10-Gigabit-capable Symmetric Passive Optical Network
4 Overview
As described in ETSI GR F5G 001 [i.1], the main business requirements identified by F5G are outlined in Figure 1.
They include improved speed, capacity, coverage, responsivity, density, reliability, availability, security, operational
efficiency, energy efficiency and spectral efficiency over previous generations of fixed networks.
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Release #1 10 ETSI GR F5G 002 V1.1.1 (2021-02)

Figure 1: Business requirements for F5G in the categories of Network, Service, and Operation
In the present document, fourteen use cases are described. Each use case may demand a different subset of the
10 requirements depicted in Figure 1. With further research, subsequent use cases may be specified in future releases of
the present document.
5 Categorization of use cases
5.1 Driving the characteristics of F5G
The use cases as described in the present document are driving the three dimensions of characteristics that are specified
in the document on generation definitions [i.1], namely eFBB (enhanced Fixed BroadBand), FFC (Full-Fibre
Connection), and GRE (Guaranteed Reliable Experience). Figure 2 shows that:
 depending on the use case, one or more dimensions are particularly important, and
 all dimensions of the F5G system architecture are needed to implement the use cases.
eFBB
(Enhanced Fixed Broadband)
Scenario based
Extend PON to legacy Ethernet
broadband
Uplink
High quality low cost private line for
Multiple Access Aggregation over PON
SMEs
incl. 5G X-Haul
Cloud Virtual
Reality
Passive optical
LAN
Enhanced traffic monitoring and network
Digitalized
control in Intelligent Access Network
ODN
On Demand High Quality Transport
PON for City Public
Service for Real time application
High Quality Private
PON for Industrial
Line
Internet
PON on- Remote Attestation for
premises Secured
Network Elements
FFC
GRE
(Full-fibre connection)
(Guaranteed Reliable Experience)
Figure 2: F5G use cases driving the three dimensions of F5G, the enhanced Fixed BroadBand
(eFBB), Full-Fibre Connection (FFC), and Guaranteed Reliable Experience (GRE)
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5.2 Application Area Perspective
A key motivation for F5G is leveraging technologies of current fibre optical networks to benefit more application areas
namely extending the business to cover new fields, including numerous applications in the vertical industries.
The use cases described in the present document cover the major anticipated areas including residential applications,
business applications, network internal topics such as network optimizations and the use of F5G for mobile front,
midhaul, and backhaul, and finally vertical applications oriented use cases. Many use cases will address topics that may
be applicable in different application areas, therefore features and solutions needed by one use case may benefit other
areas as well.
Use cases may be classified from the application and business area perspective. For each of the three main technical
drivers eFBB (speed), GRE (latency), and FFC (density), additional subcategories on the application and business area
are introduced. Based on the strongest existing affinities, each of the use cases is then mapped into one or more of the
application categories, as shown in Table 1.
Table 1: Mapping use cases into application categories
Technical driver Application category Corresponding use cases
6.3 Use case #3: High quality low cost
private line for small and medium
enterprises
(6.8 Use case #8: Multiple Access
Broadband networking Aggregation over PON)
(6.9 Use case #9: Extend PON to
legacy Ethernet Uplink)
eFBB (speed)
(6.10 Use case #10: Scenario based
broadband)
6.4 Use case #4: PON on-premises)
Customer premises networking (6.5 Use case #5: Passive optical
LAN)
6.14 Use case #14: Digitalized
Physical networking
ODN/FTTX
Immersive experiences 6.1 Use case #1: Cloud Virtual Reality
6.12 Use case #12: On Demand
Time-sensitive applications High Quality Transport for Real time
applications
GRE (latency) 6.2 Use case #2: High Quality Private
Line
Reliable communications 6.13 Use case #13: Remote
Attestation for Secured Network
Elements
(6.4 Use case #4: PON on-
premises)
(6.5 Use case #5: Passive optical
LAN)
6.7 Use case #7: Using PON for City
High-density endpoints
Public Service
(6.8 Use case #8: Multiple Access
Aggregation over PON)
(6.9 Use case #9: Extend PON to
FFC (density)
legacy Ethernet Uplink)
6.6 Use case #6: PON for Industrial
Industrial ecosystems
Manufacturing
(6.10 Use case #10: Scenario based
broadband)
Autonomous networks 6.11 Use case #11: Enhanced traffic
monitoring and network control in
Intelligent Access Network
NOTE: The use cases mapped into more than one category are identified by brackets.

The application area subcategories are defined based on the following characteristics:
• Broadband networking is typified by using gigabit connectivity broadband services in areas such as online
education, smart home, enterprise cloudification, collaborative work and social networking.
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• Customer premises networking are mostly defined by the needs of using gigabit connectivity on the customer
premises. Service areas include wireless and wired access, enhanced broadband services and smart
home/enterprise.
• Physical networking are mostly defined by the needs of using physical layer services in areas such as very-
high point-to-point transport capacities and low-level transport capacities for legacy systems.
• Immersive experiences are mostly defined by the needs of using VR/AR user experiences in human/machine
interactive communication environments such as healthcare, cloud gaming and social networking.
• Time-sensitive applications are mostly defined by the needs of ensuring time-critical, low-latency and data
processing capacity requirements in areas such as audio and video streaming/processing, industrial automation
and healthcare.
• Reliable communications are mostly defined by the needs of stringent quality of service requirements, such as
high-availability and data-integrity, in public services areas, healthcare, real-time banking and mission-critical
applications.
• High-density endpoints are mostly defined by the needs of increasing PON density in areas such as public
venues, data centres, enterprise and residential buildings and outside plant fibre densification.
• Industrial ecosystems are mostly defined by the needs of using analytics and intelligent devices in areas such
as smart manufacturing in vertical sectors and industries.
• Autonomous networks are mostly defined by the needs of using artificial intelligence and automation
techniques in areas such as networking, IoT, edge computing and smart city applications.
6 Description of use cases
6.0 Introduction
The present release of F5G use cases includes a set of services and functionalities enabled by the new generation of
fixed network, leveraged on its eFBB (enhanced Fixed BroadBand, FFC (Full-Fibre Connection) and GRE (Guaranteed
Reliable Experience) characteristics. Future releases will enhance existing use cases and add more use cases.
In the present document each use case includes the context of the use case and a detailed description.
The use case context introduces the background of each use case, providing a quick overview of the covered application
and associated challenges.
The description of the use case provides more detailed information. It includes the overview (what is the use case),
motivation (the benefits the use case provides), actors/roles (who will be involved in the use case and what they will do
in the use case) and precondition (what should be ready before the use case is running).
All the use cases in the present document are identified in Table 2, grouped into 3 use case types - new/enhanced
services to users, expanded fibre infrastructure and services, management and optimization.
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Table 2: List of Use cases
New/Enhanced Services to Users
6.1 Use case #1: Cloud Virtual Reality
6.2 Use case #2: High Quality Private Line
6.3 Use case #3: High quality low cost private line for small and medium enterprises
Expanded Fibre Infrastructure and Services
6.4 Use case #4: PON on-premises
6.5 Use case #5: Passive optical LAN
6.6 Use case #6: PON for Industrial Manufacturing
6.7 Use case #7: Using PON for City Public Service
6.8 Use case #8: Multiple Access Aggregation over PON
6.9 Use case #9: Extend PON to legacy Ethernet Uplink
Management and Optimization
6.10 Use case #10: Scenario based broadband
6.11 Use case #11: Enhanced traffic monitoring and network control in Intelligent Access Network
6.12 Use case #12: On Demand High Quality Transport for Real time applications
6.13 Use case #13: Remote Attestation for Secured Network Elements
6.14 Use case #14: Digitalized ODN/FTTX

These use cases will contribute to the definition of the requirements for a new architecture, new devices with new
interfaces, new network topologies and a set of advanced management and optimization capabilities that will enhance
the fields of applicability and the quality of experience of next generation fibre networks.
The order of use cases in the subsequent clauses follows the order in Table 2.
6.1 Use case #1: Cloud Virtual Reality
6.1.1 Use case context
Based on cloud computing and rendering technologies, Cloud Virtual Reality (VR) applications introduce vast amount
of data exchange between the terminal and the cloud server. It will place stringent requirements on the bearer network
(e.g. bandwidth, latency, jitter, and packet loss), which will require upgrading of the bearer network technology and
architecture. The current network may be able to support early versions of Cloud VR (e.g. 4K VR) with limited user
experience, but will not meet the requirements for large scale deployment of Cloud VR with enhanced experience (e.g.
Interactive VR applications, cloud games). To support more applications and ensure a high-quality experience, much
higher available and guaranteed bandwidth (e.g. > 1 Gbps), lower latency (e.g. < 10 ms) and lower jitter (e.g. < 5 ms)
are required.
This use case gives a brief introduction of Cloud VR applications and the required capabilities on fixed bearing
network.
6.1.2 Description of the use case
6.1.2.1 Overview
Cloud VR offloads computing and cloud rendering in VR services from local dedicated hardware to a shared cloud
infrastructure. Cloud rendered video and audio outputs are encoded, compressed, and transmitted to user terminals
through fast and stable networks. In contrast to current VR services, where good user experience primarily relies on the
end user purchasing expensive high-end PCs for local rendering, cloud VR promotes the popularization of VR services
by allowing users to enjoy various VR services where rendering is carried out in the cloud.
Cloud VR service experience is impacted by several factors that influence the achieved sense of reality, interaction, and
pleasure, which are related to the network properties (e.g. bandwidth, latency and packet loss).
• The sense of reality requires the network to provide sufficiently high bandwidth.
The sense of reality depends on the audio and video quality. High-quality video transmission needs high network
bandwidth.
• The sense of interaction requires the network to provide sufficiently low latency and low jitter.
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Cloud VR implements computing and rendering in the cloud. Any latency from remote processing compromise the
sense of interaction, including latency in loading, switchover, and joystick operations. The most important effect of high
latency in VR is the user becoming sea-sick or dizzy. Note that high jitter will cause VR play-out to not being smooth
and frames might be distorted or lost.
• The sense of pleasantness requires high bandwidth, low latency, low jitter, and low packet loss.
The sense of pleasantness depends on the smoothness of the VR service. It is strongly related to factors such as frame
freezing and artefacts. The network performance indicators, such as bandwidth, latency, and packet loss rate, need to
meet the requirements to realize pleasurable experience.
Figure 3 shows an overview of Cloud VR network architecture.

Figure 3: Cloud VR network architecture
As depicted in Figure 3, the Cloud VR bearer network includes the home network, access network, metro IP network,
and an Optical Transport network as infrastructure: ®
• The home network provides Wi-Fi access and authentication capabilities for Cloud VR headsets.
• The acce
...