ITU-T Recommendation database

Search by number:

Others:

Study Groups tree view

ITU-T Y.3120 (01/2023)

Functional architecture for latency guarantee in large scale networks including IMT-2020 and beyond

Recommendation ITU-T Y.3120 specifies the functional architecture, functional entities, reference points, and operational procedures, for the requirements and framework defined in Recommendation ITU-T Y.3113, based on the architecture defined in Recommendation ITU-T Y.2111. Meanwhile, Recommendation ITU-T Y.3113 specifies the use of flow aggregate (FA)-based scheduling and regulators at aggregation domain (AD) boundaries. Recommendation ITU-T Y.2111 specifies the resource and admission control functions (RACF) in support of end-to-end quality of service (QoS) and necessary transport functions in next generation networks (NGNs).

Citation:	https://handle.itu.int/11.1002/1000/15234
Series title:	Y series: Global information infrastructure, Internet protocol aspects, next-generation networks, Internet of Things and smart cities Y.3000-Y.3499: Future networks
Approval date:	2023-01-13
Provisional name:	Y.IMT2020-fa-lg-lsn
Approval process:	AAP
Status:	In force
Maintenance responsibility:	ITU-T Study Group 13
Further details:	Patent statement(s) Development history

Ed.	ITU-T Recommendation	Status	Summary	Table of Contents	Download
1	Y.3120 (01/2023)	In force	here	here	here
1.0	Y.3120 (2023) Err. 1 (02/2024)	In force	-	-	here


ITU-T Supplement	Title	Status	Summary	Table of contents	Download
Y Suppl. 44 (07/2017)	Standardization and open source activities related to network softwarization of IMT-2020	In force	here	here	here
Y Suppl. 56 (12/2019)	ITU-T Y-series – Supplement on use cases of smart cities and communities	In force	here	here	here
Y Suppl. 59 (11/2025)	IMT-2020 and beyond standardization roadmap	In force	here	here	here
Y Suppl. 64 (07/2020)	ITU-T Y.3100-series – Awareness on use cases and migration aspects of IMT-2020	In force	here	here	here
Y Suppl. 68 (05/2021)	Framework for Internet of things ecosystem master plan	In force	here	here	here
Y Suppl. 69 (05/2021)	Web-based data model for Internet of things and smart city systems and services	In force	here	here	here
Y Suppl. 71 (07/2022)	ITU-T Y.3000 series – Use cases for autonomous networks	In force	here	here	here
Y Suppl. 72 (11/2022)	ITU-T Y.3000-series – Artificial intelligence standardization roadmap	In force	here	here	here
Y Suppl. 75 (03/2023)	ITU-T Y.3000 series – Quantum key distribution networks – Quantum-enabled future networks	In force	here	here	here
Y Suppl. 82 (07/2024)	Standardization gaps and roadmap for artificial intelligence and Internet of things in digital agriculture	In force	here	here	here
Y Suppl. 83 (07/2024)	Optimizing digital agriculture with best practices for integrating artificial intelligence and Internet of things	In force	here	here	here
Y Suppl. 95 (11/2025)	Use cases of open service environment for future networks	In force	here	-	here
Y Suppl. 96 (11/2025)	Machine learning standardization roadmap	In force	here	here	here
Y Suppl. 97 (11/2025)	Glossary of terms and definitions for machine learning	In force	here	-	here

Title	Approved on	Download
Transport network support of IMT-2020/5G (October 2018)	2018	here
ITU-T Focus Group IMT-2020 Deliverables	2017	here
Multiple radio access technologies	2012	here
Future networks	2012	here

Connecting the world and beyond

ITU-T Recommendations

ITU-T Y.3120 (01/2023)