ETSI GS F5G 036 V1.1.1 (2026-04)
Fifth Generation Fixed Network (F5G); F5G Advanced Network Architecture Release 4
Fifth Generation Fixed Network (F5G); F5G Advanced Network Architecture Release 4
DGS/F5G-0036
General Information
- Status
- Not Published
- Technical Committee
- F5G - Fifth Generation Fixed Network
- Current Stage
- 12 - Citation in the OJ (auto-insert)
- Due Date
- 05-Apr-2026
- Completion Date
- 10-Apr-2026
Frequently Asked Questions
ETSI GS F5G 036 V1.1.1 (2026-04) is a standard published by the European Telecommunications Standards Institute (ETSI). Its full title is "Fifth Generation Fixed Network (F5G); F5G Advanced Network Architecture Release 4". This standard covers: DGS/F5G-0036
DGS/F5G-0036
ETSI GS F5G 036 V1.1.1 (2026-04) is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
GROUP SPECIFICATION
Fifth Generation Fixed Network (F5G);
F5G Advanced Network Architecture
Release 4
Disclaimer
The present document has been produced and approved by the Fifth Generation Fixed Network (F5G) 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.
2 ETSI GS F5G 036 V1.1.1 (2026-04)
Reference
DGS/F5G-0036
Keywords
access, architecture, customer premises networks,
F5G Advanced, FTTR, home gateway,
intelligent homes & buildings, optical,
optical access network, optical network device,
requirements, 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 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871
Important notice
The present document can be downloaded from the
ETSI Search & Browse Standards application.
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 on ETSI deliver repository.
Users should be aware that the present document may be revised or have its status changed,
this information is available in the Milestones listing.
If you find errors in the present document, please send your comments to
the relevant service listed under Committee Support Staff.
If you find a security vulnerability in the present document, please report it through our
Coordinated Vulnerability Disclosure (CVD) program.
Notice of disclaimer & limitation of liability
The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of
experience to understand and interpret its content in accordance with generally accepted engineering or
other professional standard and applicable regulations.
No recommendation as to products and services or vendors is made or should be implied.
No representation or warranty is made that this deliverable is technically accurate or sufficient or conforms to any law
and/or governmental rule and/or regulation and further, no representation or warranty is made of merchantability or fitness
for any particular purpose or against infringement of intellectual property rights.
In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.
Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not
limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property
rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages
for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use
of or inability to use the software.
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 2026.
All rights reserved.
ETSI
3 ETSI GS F5G 036 V1.1.1 (2026-04)
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 . 8
3 Definition of terms, symbols and abbreviations . 9
3.1 Terms . 9
3.2 Symbols . 10
3.3 Abbreviations . 10
4 Business requirements for the F5G-A Network Architecture . 13
4.1 Context . 13
4.2 Flexible on-demand new residential user service packages . 13
4.3 Flexible on-demand new business service packages . 13
4.4 Evolution to application-oriented 10 Gigabit guaranteed residential services. 13 ®
4.5 Optimization of large Wi-Fi networks for residential and enterprises . 13
4.6 AI-based automation of application scenario detection and network adaptation networking to provide
the best services . 14
4.7 Advanced services through networking in conjunction with computing capabilities. 14
4.8 Improved energy usage through all optical networking to the edge . 14
4.9 Flexibly sharing optical resources . 14
4.10 Service-oriented Optical Networks . 14
4.11 Use optical communication for special dedicated networks . 15
4.12 Deterministic Optical Networks . 15
4.13 Operation as a Service . 15
4.14 Use of Optical Infrastructure for Sensing . 15
4.15 Evolution of Optical Networking Technology for Data Centres . 15
4.16 Support for Agentic AI . 15
5 F5G-A Network Architecture . 16
5.1 Architecture design principles . 16
5.1.1 Quality on Demand (QoD) . 16
5.1.2 Autonomous End-to-End Slice Creation and Adaptation . 16 ®
5.1.3 Large Wi-Fi Networks and Policy Control . 16
5.1.4 Introduction of additional Residential and Business Service Packages . 16
5.1.5 Addition of Computing and AI capabilities and its interaction with the network . 17
5.1.6 Optical Layer extension for wavelength sharing . 17
5.1.7 Fine-Granular Services over Optical Networks . 17
5.1.8 Optical Networking in all Segments of the Network . 17
5.2 Architecture overview . 17
5.2.1 Evolution to the F5G-A Architecture, Release 4 . 17
5.2.2 Architectural Overview . 18
5.2.3 The F5G-A Underlay Plane . 19
5.2.3.1 Overview . 19
5.2.3.2 Customer Premises Network (CPN) . 19
5.2.3.3 Access Network (AN) . 19
5.2.3.4 Aggregation Network (AggN) . 20
5.2.3.5 Core Network (CN) . 20
5.2.3.6 Compute Resources . 20
5.2.3.7 Data Centre Network (DCN) and Data Centre Interconnect (DCI) . 20
5.2.3.8 General end-to-end functionalities . 20
5.2.4 The F5G-A Service Plane . 21
5.2.5 The F5G-A Management, Control & Analytics (F5G-A MCA) Plane . 23
5.2.6 Cross-Plane Computing . 24
ETSI
4 ETSI GS F5G 036 V1.1.1 (2026-04)
5.3 F5G-A topology and interfaces . 26
5.3.1 Network Overview . 26
5.3.1.1 General Topology Overview . 26
5.3.1.2 Enterprise CPN: Fibre To The Office (FTTO) Scenario . 28
5.3.1.3 Industrial CPN: Fibre To The Machine (FTTM) Scenario. 30
5.3.1.4 Networking in Data Center Scenarios . 31
5.3.2 Definition of Interfaces . 31
5.3.2.1 T interface . 31
5.3.2.2 T' interface . 31
5.3.2.3 U interface . 31
5.3.2.4 U' interface . 32
5.3.2.5 F Interface . 32
5.3.2.6 G Interface. 32
5.3.2.7 H Interface. 32
5.3.2.8 B interface . 32
5.3.2.9 C interface . 33
5.3.2.10 D interface . 33
5.3.2.11 V interface . 33
5.3.2.12 V interface . 33
o
5.3.2.13 V interface . 34
λ
5.3.2.14 A10 interface . 34
5.3.2.15 K interface . 34
5.3.2.16 L interface . 35
5.3.2.17 J interface . 35
5.3.2.18 DCI interface . 35
5.3.2.19 DCA interface . 35
5.3.2.20 M Interface . 35
5.3.3 Near real-time Control Topology . 35
5.3.4 Near real-time Control Interfaces . 36
5.3.4.1 The F1 FTTR control interfaces . 36
5.3.4.2 G Control Interface . 37
c
5.3.4.3 T Control Interface . 37
c
5.3.4.4 C Control Interface . 37
c
5.3.4.5 V Control Interface . 37
c
5.3.4.6 K Control Interface . 38
c
5.3.4.7 C1 and C2/C2' (fg)OTN Control Interfaces . 38
5.3.4.8 Compute Coordination Interfaces . 39
5.4 Key enabling features . 40
5.4.1 AI-enabled Fixed Access Network Architecture . 40
5.4.1.1 Background . 40
5.4.1.2 Overview . 40
5.4.1.3 Quality on Demand (QoD) Application Programming Interface (API) . 41
5.4.1.4 The App-Flow application: A step beyond Slicing . 41
5.4.1.5 The F5G-A Access Node Architecture for AI-enabled fixed access network . 42
5.4.1.6 Agentic AI as a service . 43
5.4.1.7 Self-optimization AI-enabled fixed access network . 44
5.4.2 F5G-A Transport and Data Center Network Architecture . 44
5.4.2.1 Overview . 44
5.4.2.2 Technical Solutions and Requirements . 45
5.4.2.2.1 AI Data Centre Access (AI DCA) . 45
5.4.2.2.2 AI Data Centre Interconnection (AI DCI) . 45
5.4.2.2.3 AI Data Centre Network (AI DCN). 45
5.4.2.3 OTN Fabric . 46
5.4.2.4 Wavelength-shared WDM Fabric . 47
5.4.2.4.1 Overview . 47
5.4.2.4.2 Colourless ROADM technique in access nodes . 48
5.4.2.4.3 Automated OAM enabled by optical-layer digital label . 49
5.4.3 Optical Cloud Network (OCN) Architecture . 49
5.4.4 Fibre Sensing Architecture . 50
5.4.5 PON based Industrial Networks . 51
ETSI
5 ETSI GS F5G 036 V1.1.1 (2026-04)
Annex A (informative): How the F5G-A Architecture Release 4 addresses the Gaps in the Use
Cases . 53
History . 57
ETSI
6 ETSI GS F5G 036 V1.1.1 (2026-04)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations
pertaining to these essential IPRs, if any, are publicly available for ETSI members and non-members, and can be
found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to
ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the
ETSI IPR online database.
Pursuant to the ETSI Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,
including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not
referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become,
essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its
Members. 3GPP™, LTE™ and 5G™ logo are trademarks of ETSI registered for the benefit of its Members and of the
3GPP Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of ®
the oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association. ®
BLUETOOTH is a trademark registered and owned by Bluetooth SIG, Inc.
Foreword
This Group Specification (GS) has been produced by ETSI Industry Specification Group (ISG) Fifth Generation Fixed
Network (F5G).
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
7 ETSI GS F5G 036 V1.1.1 (2026-04)
1 Scope
The present document specifies the end to end F5G Advanced (F5G-A) network architecture, features and related
network elements' requirements for F5G-A Release 4 including On-premise, Access, Aggregation, and Core Networks
and its collaboration with computing functionality. The present document defines new features and enhances features
from previous releases.
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found in the
ETSI docbox.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long-term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI GS F5G 024 (V1.1.1): "Fifth Generation Fixed Network (F5G); F5G Advanced Network
Architecture Release 3".
[2] ETSI GS F5G 018 (V1.1.1): "Fifth Generation Fixed Network (F5G); Architecture of Optical
Cloud Networks".
[3] ETSI GS F5G 033 (V1.1.1): "Fifth Generation Fixed Network (F5G); F5G Advanced Technology
Requirements and Gap Analyses; Release 4".
[4] ETSI GS F5G 027 (V1.1.1): "Fifth Generation Fixed Network (F5G); F5G Advanced End-to-End
Management and Control Release 4".
[5] Recommendation ITU-T G.9941 (07/2024): "High speed fibre-based in-premises transceivers -
physical layer specification".
[6] Recommendation ITU-T G.9942 (07/2024): "High speed fibre-based in-premises transceivers -
Data link layer".
[7] Recommendation ITU-T G.988 (11/2022): "ONU management and control interface (OMCI)
specification".
[8] Recommendation ITU-T G.709: "Interfaces for the optical transport network".
[9] Recommendation ITU-T G.709.20: "Overview of fine grain OTN".
[10] Recommendation ITU-T G.9804.2:"'Higher speed passive optical networks - Common
transmission convergence layer specification".
[11] Recommendation ITU-T G.9804.3: "50-Gigabit-capable passive optical networks (50G-PON):
Physical media dependent (PMD) layer specification".
[12] ETSI GS F5G 022 (V1.1.2): "Fifth Generation Fixed Network (F5G); Specification for PON based
Industrial Network".
[13] Recommendation ITU-T G.9943: "High speed fibre-based in-premises transceivers - network
management".
[14] IETF RFC 7209: "Requirements for Ethernet VPN (EVPN)".
ETSI
8 ETSI GS F5G 036 V1.1.1 (2026-04)
[15] Recommendation ITU-T G.959.1 (01/2024): "Optical transport network physical layer interfaces".
TM
[16] IEEE 802.3:2022 : "IEEE standards for Ethernet".
TM
[17] IEEE 802.11-2020 : "IEEE Standard for Information Technology -- Telecommunications and
Information Exchange between Systems -- Local and Metropolitan Area Networks -- Specific
Requirements -- Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer
(PHY) Specifications".
[18] Recommendation ITU-T G.9940 (12/2023): "High speed fibre-based in-premises transceivers -
system architecture".
[19] ETSI GS F5G 031 V1.1.1: "Fifth Generation Fixed Network (F5G); Intelligent Management for
PON based Industrial network".
[20] IETF RFC 4760: "Multiprotocol Extensions for BGP-4".
[21] ETSI GS F5G 014 (V1.1.1): "Fifth Generation Fixed Network (F5G); F5G Network Architecture
Release 2".
[22] Recommendation ITU-T G.9949: "WLAN management control interface (WMCI) for in-premises
network".
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 may be useful in implementing an ETSI deliverable or add to the reader's
understanding, but are not required for conformance to the present document.
[i.1] ETSI GR F5G 021 (V1.1.1): "Fifth Generation Fixed Network (F5G); F5G Advanced Generation
Definition".
[i.2] ETSI GR F5G 032 (V1.1.1): "Fifth Generation Fixed Network (F5G); F5G Advanced Use Cases;
Release 4".
[i.3] Recommendation ITU-T Y.110 (1998): "Global Information Infrastructure principles and
framework architecture".
[i.4] Recommendation ITU-T G.709.1: "Flexible OTN common elements".
[i.5] Recommendation ITU-T G.709.3: "Flexible OTN B100G long-reach interfaces".
[i.6] Recommendation ITU-T G.709.5: "Flexible OTN short-reach interfaces".
[i.7] Recommendation ITU-T G.709.6: "Flexible OTN B400G long-reach interfaces".
[i.8] Recommendation ITU-T G.872: "Fine grain flexible ODU (fgODUflex) path layer network".
[i.9] Recommendation ITU-T G.672: "Characteristics of multi-degree reconfigurable optical add/drop
multiplexers".
[i.10] ITU-T G.Xfin-PHY: "High speed fibre-based in-premises transceivers - 10G Physical layer".
[i.11] ITU-T G.Xfin-DLL: "High speed fibre-based in-premises transceivers - 10G data link layer".
[i.12] ITU-T G.Sup85 (03/25): "FgODUflex over point-to-multipoint networks".
[i.13] ITU-T G.OMCC4FIP: "Management and control interface of fibre in premises (FIP) networks via
OMCC".
ETSI
9 ETSI GS F5G 036 V1.1.1 (2026-04)
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
compute functionality: basic computing functions, which include input, processing, storage, and output
NOTE 1: Usually, processing is flexibly programmable
NOTE 2: The compute functionality needs compute resources for the computational success of a program.
compute resource: measurable quantities of compute power that might be requested, allocated, and consumed for
computing activities
EXAMPLE: Possible compute resources include Central Processing Units (CPU) and Memory among others.
control process: sub-class of a compute process, which is a generic compute functionality
NOTE: The control process is the way compute might be used for controlling components, devices, systems, or
equipment. The compute function is scoped to the input from, and output to the controlled components,
devices, systems, or equipment. A control process might control other control processes building overall
hierarchy of control processes.
customer: either subscriber, user, or both, depending on the market segment
equipment: single physical container with implementation of one or more functions
NOTE: The term is derived and adapted from Recommendation ITU-T Y.110 [i.3]. The equipment will have at
least one function implemented in hardware and will have interfaces through which it might be connected
to other equipment. It may be designed in a modular way in that the equipment might be made up from a
number of smaller pieces of equipment. In addition, some functions may be implemented in software,
which might be changed during the lifetime of the equipment.
fgOTN: fine grain Optical Transport Network (OTN) that supports from 10 Mbit/s up to 1 Gbit/s
NOTE: See Annexes M and N of Recommendation ITU-T G.709 [8] for the specification of OTN including
fgOTN and see Recommendation ITU-T G.709.20 [9] for an overview of fgOTN.
(fg)OTN: OTN network supporting both standards OTN and fgOTN with service rates from 10 Mbit/s up to 800 Gbit/s
and beyond
NOTE 1: See the following references for more detailed information and the specification of (fg)OTN for a variety
of deployment options and situations [8], [i.4], [i.5], [i.6], [i.7], [9] and [i.8]
NOTE 2: (fg)OTN network elements supports OTN with or without support for fgOTN.
(fg)O-CPE: Customer Premises Equipment (CPE) supporting OTN with or without support for fgOTN
fibre sensing network element: network element that has fibre sensing capabilities
interface: point where independent and distinct systems or equipment interact and communicate with each other
NOTE 1: In the industry there are various definitions and more specialized terms for the term interface, such as a
Reference Point, logical or physical interface. Depending on the interface described in the present
document, any of those terms apply.
NOTE 2: ITU (see Recommendation ITU-T Y.110 [i.3]) has defined the terms "implementational interface" and
"physical interface", which has a similar meaning to interfaces used in the present document.
Lambda (λ) fabric: network consisting of optical connections only with different wavelength being switched
NOTE: In the context of the present document, the λ fabric is used for the Aggregation Network, other
applications for the λ fabric are for further study.
ETSI
10 ETSI GS F5G 036 V1.1.1 (2026-04)
non-real-time control: compute process, where the time from receiving the input data to the output action is non-
urgent and might take some time for the process to finish
NOTE 1: Due to that characteristic the control process might be located remote from the component being
controlled and the component and the control process need to be connected with a communication
channel with more relaxed requirements than in the real-time control case. The bandwidth and latency of
the communication channel depends on the control process and the amount of data being transmitted
between the component and the control process.
NOTE 2: The present document describes concepts that are predominantly classed as real-time control of the
F5G-A network. Non-real-time control features are for further study and are usually part of a network
management related work items.
real-time control: compute process, where the time from receiving the input data to the output action is very short
NOTE: Due to that characteristic the control process needs to be located close to the component being controlled
and the component and the control process need to be connected with a high-speed, low latency
communication channel.
subscriber: legal entity who pays regularly to receive or access a service
user: somebody using a service
3.2 Symbols
Void.
3.3 Abbreviations
For the present document, the following abbreviations apply:
(fg)O-CPE (fg)OTN Customer Premises Equipment
3D Three Dimensional
AggN Aggregation Network
AI Artificial Intelligence
AN Access Network
AP Access Point
API Application Programming Interface
APP Application
BGP Border Gateway Protocol
BNG Broadband Network Gateway
BSS Business Support System
CDC Central Data Centre
CE Customer Equipment
CN Core Network
CO Central Office
CPE Customer Premises Equipment
CPN Customer Premises Network
CPU Central Processing Unit
DC Data Centre
DCA Data Centre Access
DC-GW Data Center Gateway
DCI Data Centre Interconnect
DCN Data Centre Network
DDS Data Distribution Service
DECT Digital Enhanced Cordless Telecommunications
DLL Data Link Layer
E2E End-to-End
E-LAN Ethernet virtual private LAN
E-Line Ethernet virtual private Line
E-Tree Ethernet virtual private Tree
ETSI
11 ETSI GS F5G 036 V1.1.1 (2026-04)
EVPN Ethernet VPN
th
F4G 4 Generation Fixed Network
NOTE: See the F5G-A generation definition in ETSI GR F5G 021 [i.1].
F5G-A F5G Advanced
FAN Fibre Access Node
FDM Frequency Division Multiplexing
fgODU fain grain ODU
fgOTN fine-grain Optical Transport Network
fgP2MP fine grain Point to Multi-Point
FIE FAN Intelligent Engine
FIP Fibre In Premises
FlexO Flexible Optical transport network
FMCI Fibre Management and Control Interface
FTTM Fibre to the Machine
FTTO Fibre to the Office
FTTR Fibre-To-The-Room
GMPLS Generalized Multi-Protocol Label Switching
GPON Gigabit Passive Optical Networks
GPU Graphics Processing Unit
GUI Graphical User Interface
GW Gateway
HGW Home Gateway
HVAC Heating, Ventilation, and Air Conditioning
ICT Information and Communication Technology
IE Industrial Equipment
IoT Internet of Things
IP Internet Protocol
IPTV Internet Protocol Television
IT Information Technology
KPI Key Performance Indicators
KQI Key Quality Indicator
L2VPN Layer 2 VPN
L3VPN Layer 3 VPN
LAN Local Area Network
LDC Local Data Centre
LLM Large Language Model
M&C Management and Control
MAC Media Access Control
MCA Management, Control and Analytics
MD-ROADM Multi-Dimensional ROADM
MFU Main Fibre Unit
NOTE: The MFU was call Primary ONU (P-ONU) in previous releases of the F5G and F5G-A architecture.
MP-BGP Multiprotocol extensions for BGP
MPLS Multiprotocol Label Switching
NaaS Network as a Service
NAS Network Attached Storage
NE Network Element
O&M Operation and Maintenance
OAM Operation, Administration and Maintenance
OCh Optical Channel
OCN Optical Cloud Network
OCS Optical Circuit Switching
ODN Optical Distribution Network
ODU Optical Data Unit
OE OTN Edge
OLT Optical Line Terminal
OMCC ONU Management and Control Channel
OMCI ONU Management and Control Interface
OMS Optical Multiplex Section
ETSI
12 ETSI GS F5G 036 V1.1.1 (2026-04)
ONU Optical Network Unit
OPEX Operational Expenditure
OSP Optical Service Protocols
OSS Operations Support System
OTN Optical Transport Network
OTS Optical Transmission Section
OTSiA Optical Tributary Signal Assembly
OTUCn Optical Transport Unit-Cn
OTUk Optical Transport Unit (k = 0 to 4)
OXC Optical Cross Connect
P2MP Point to Multi-Point
P2P Point to Point
PBX Private Branch Exchange
PC Personal Computer
PDH Plesiochronous Digital Hierarchy
PE Provider Edge
PHY Physical layer
POL Passive Optical LAN
PON Passive Optical Network
PPPoE Point-to-Point Protocol over Ethernet
QoD Quality on Demand
QoE Quality of Experience
QoS Quality of Service
RaaS Robotics as a Service
RDMA Remote Direct Memory Access
RFID Radio Frequency Identification
RG Residential Gateway
ROADM Reconfigurable Optical Add/Drop Multiplexer
SAP Service Access Point
SC Sub-Carrier
SCM Sub-Carrier Multiplexing
SDH Synchronous Digital Hierarchy
SDO Standards Development Organization
SFU Sub Fibre Unit
NOTE The SFU used to be called Edge ONU (E-ONU) in previous release of the F5G and F5G-A architecture.
SLA Service Level Agreement
SME Small and Medium Enterprises
SMP Service Mapping Point
SOC Service-oriented Compute
SPP Service Processing Point
SRv6 Segment Routing over IPv6
TDM Time Division Multiplexing
vCPE Virtual CPE
VLAN Virtual LAN
VNF Virtual Network Function
VPN Virtual Private Network
VR Virtual Reality
VxLAN Virtual extensible Local Area Network
WDM Wavelength-Division Multiplexing
WG Wireless Gateway
WMCI Wireless Management and Control Interface
WSS Wavelength Selected Switch
XC Cross-Connect
XGS-PON 10-Gigabit-capable Symmetric PON
NOTE: Also known as symmetric 10G-PON.
XR eXtended Reality
YANG Yet Another Next Generation
ETSI
13 ETSI GS F5G 036 V1.1.1 (2026-04)
4 Business requirements for the F5G-A Network
Architecture
4.1 Context
The F5G-A Use Cases, Release 4 [i.2] shows the various services and application that the F5G-A architecture Release 4
needs to support. The F5G-A Generation Definition [i.1] has defined a set of network characteristics that the F5G-A
network architecture shall support.
The present clause lists the various requirements from a business perspective. Note that they are not technically exact
but show the direction and business benefits of the F5G-A network architecture, Release 4.
4.2 Flexible on-demand new residential user service packages
The transition from a relatively limited residential service portfolio, such as triple play service (High-speed Internet,
Voice, IPTV) to a much wider service portfolio including but not limited to IoT, new entertainment (4K and 8K video,
VR gaming), AI-driven applications, etc., implies that application specific network requirements are needed. Due to
on-demand service deployment, more flexible allocation and adaptation of the network is needed. The on-demand
aspect means full configuration automation of specific service packages with the necessary networking capabilities and
automated delivery of high-quality services.
4.3 Flexible on-demand new business service packages
The transformation of enterprise networking to an "as a Service" model, requires additional functionality in the network
to access multiple clouds from different cloud providers. Having Software "as a Service" requires network adaptation to
service specific needs. Enterprise services might be bundled into packages such that these packages are ordered
on-demand and based on the actual business needs.
4.4 Evolution to application-oriented 10 Gigabit guaranteed
residential services
The introduction of many service packages, means that a network subscription requires network quality differentiation
within the residential premises as well as in the access and core networks. For some of the services, guaranteed QoS
also needs to be supported. A subscription needs differentiated network performance for the network operator to
rd
provide its own applications and as well as for 3 party applications.
Due to the higher number of end-systems and higher bandwidth services more network capacity per customer is needed.
The network speed will increase from 1 Gbits to 5 Gbits today to 5 Gbits to 10 Gbits in the future [i.1]. ®
4.5 Optimization of large Wi-Fi networks for residential and
enterprises
For both residential and business scenarios, the customer premises network needs extensive coverage providing
connectivity to every corner of the customer premises without interruptions. In addition, it is not just about providing
connectivity, but having high quality and high capacity capability in all areas of the customer premises. This means the
® ®
on-premises Wi-Fi network is expanding to include a Wi-Fi Access Point in every room or office (FTTR2H or
FTTR2B). ®
In many cases it is about a Wi-Fi network providing high quality of experience to the residential or enterprise users
including easy installation or self-install and low network wide energy usage. From a service provider perspective self-
install might help lower operational cost and significantly reduce the number of residential or business call-outs.
ETSI
14 ETSI GS F5G 036 V1.1.1 (2026-04)
4.6 AI-based automation of application scenario detection and
network adaptation networking to provide the best services
Since various applications are running in various network scenarios, the network should be capable of automatically
detecting and reacting to them providing the best possible service. This also means that network adaptation to changes
in the environment, application usage profile, or any other changes affecting the service quality shall be performed
automatically. AI based automation can learn the behaviour and act accordingly for the best possible experience.
4.7 Advanced services through networking in conjunction with
computing capabilities
More advanced services are not restricted to communication and networking anymore. Combinations of networking and
computing/storage resources in a single platform enables combined service creation and deployment. The network
providing compute and storage capabilities benefits the overall service twofold. Firstly, compute and storage are used to
improve the quality of the service and experience through AI. Secondly the service itself is deployed as a combination
of networking and compute/storage. Examples include cloud storage easily accessible from residential or business,
application as a service installed in the cloud and the GUI provided to the customers. The computing capability can be
use
...




Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...