5G E2E Architecture Framework

5G End-to-End Architecture Framework v3.0.8

The purpose of this document is to provide a high-level framework of architecture principles and requirements that provide guidance and direction for NGMN partners and standards development organisations in the shaping of the 5G suite of interoperable capabilities, enablers, and services. It builds on the architectural concepts and proposals implied by the NGMN White Paper and subsequent deliverables published by NGMN.


The elements of functional virtualisation shift of computing to the edges of the network, and leveraging of spectrum distribution and flexibility, are among the dominant themes that shape the 5G ecosystem. Optimisation of operational and performance efficiencies, while creating and delivering an exceptional and customisable user experience is of paramount significance.

Joint NGMN/WBA RAN Convergence White Paper

Joint NGMN/WBA RAN Convergence Paper

In order to examine the best future solutions for convergence of Wi-Fi and 5G, this paper examines the current Wi-Fi interworking solutions available for 4G systems using either trusted or untrusted Wi-Fi access, through either Core Network based or RAN level integration. It also reviews the 3GPP 5G system approach to Wi-Fi access, which includes integration of untrusted Wi-Fi access in Release 15 and the new opportunities in Release 16 for trusted Wi-Fi access as well as wireline and cable modem access such as from a residential gateway. Release 16 specified Access Traffic Steering, Switching and Splitting (ATSSS) functionality is analyzed which enables data session over one or more concurrent accesses.
Cover Page SBA Phase 2 Deliverable

Service-Based Architecture in 5G Case Study and Deployment Recommendations

The main target of this document is to investigate the following aspects, which were not covered in phase 1.

  • How to make services more decoupled to achieve independent Life Cycle Management (LCM) and flexible service deployment and management.
  • How to achieve high performance, including low delay, high concurrency, high reliability, and security
  • Investigate how to support roaming across different 5G core networks
  • Case study for generation of network slicing and edge computing by service
  • Case study and recommendations for a distribution strategy of network services


5G Trial and Testing Initiative - Proof of Concept Major Conclusions

5G Trial and Testing Initiative – Proof of Concept Major Conclusions

Architectural Highlights/Gaps:

  • CU/DU split: the need for open interface F1 and functional split agreement
  • CP/UP split: beyond current 3GPP standardization, but widely embraced by the operator community; heated discussion on open interface E1 and multi-vendor, RRM implementations in O-RAN, etc.
  • Fronthaul: the fact that we have not been able to achieve FH testing in PoC phase is due to lack of well-established interface, but hopefully in PCNT.

Performance Statements:

  • We saw most of the performance KPI results are meeting with the PoC success criteria
  • Some of the KPIs didn’t meet criteria, which was due to functionality or feature missing implementation or due to environmental constrains. We recommend these to be checked during pre-commercial trial phase.
5G RAN CU - DU Network Architecture Transport Options and Dimensioning v1.0

5G RAN CU – DU network architecture, transport options and dimensioning

This document aims to provide detailed updates on the functional split options for 5G and provide insight into how these splits might be deployed.

5G Network and Service Management Including Orchestration V3.14.0

5G Network and Service Management Including Orchestration

This document describes requirements for 5G Network and Service Management including Orchestration. The Document includes requirements covering all potential parts of future networks, i.e., fixed-, mobile-, cloud, virtualized technologies from a Network and Service Management including Orchestration perspective.

NGMN Publication

RAN Convergence Paper

NGMN and Wireless Broadband Alliance (WBA) have published the first results of their collaboration to drive the convergence of multi-technology RANs and core networks. The joint report identifies a number of emerging opportunities and use cases that the industry can benefit from through the convergence of 5G and Wi-Fi, driven by the ever-enhancing capabilities of licenced and unlicensed technologies. It also highlights the key challenges which must first be addressed in order to realise this convergence – including tighter integration of Wi-Fi access in 5G networks, network manageability and policy control, and the enablement of Wi-Fi-only devices.

NGMN Publication

Definition of the Testing Framework for the NGMN 5G Pre-Commercial Network Trials (Version 2)

This document (Version 2) focuses on the pre-commercial network trials phase of the NGMN 5G Trial & Testing Initiative which has the following scope:

  • Developing a testing framework for 5G New Radio (NR), as developed by 3GPP, allowing the harmonization of the testing methodologies between the different parties conducting trials.
  • Devising a strategy for the trials activities to guarantee efficiency and success of the different trials activities.
  • Testing 5G capabilities in realistic conditions with pre-commercial equipment.
NGMN Publication

5G Extreme Requirements: Operators’ Views on Fundamental Trade-Offs

The aim of this work is to highlight what implications and trade-offs related to the delivery of new 5G services are relevant for mobile network operators. Some of these new services, in fact, require extremely low latency and high reliability of the communication link, which have very little in common with the targets that the telecommunications industry has worked towards until today. Mobile cellular networks have in fact traditionally been designed and optimised for the delivery of good voice and data services for mobile broadband customers, so the new 5G requirements now call for a re-think on how the future network will have to be designed and optimised in order to enable the new services.

The purpose of this document is to outline relevant trade-offs that need to be taken into account when delivering 5G services. In particular, the interplay among coverage, packet size, data rate, latency, and reliability, is analysed.