Technical Documents

5G Extreme Requirements: E2E Considerations

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. The new 5G requirements, in fact, 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 identify realistic end-to-end deployment configurations that can potentially deliver the 5G extreme services across their footprint and to highlight some of the key challenges that come into play in this context.

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NGMN Overview on 5G RAN Functional Decomposition

The 5G RAN decomposition allows for a wide range of 5G services requirements to be met by allowing for RAN functionality to be split into centralised and distributed locations. There is a trade-off in terms of performance, complexity, flexibility, and transport demands that can allow an operator to decide what RAN decomposition(s) to deploy. This work provides an overview of the various RAN functional split options and their relative trade-offs. This work also provides an overview of the various industry activities that together form a toolbox enabling an operator to deploy the RAN functional split(s) of their choice. The functional split options can broadly be classified as either a high layer split (HLS) or a low layer split (LLS). The HLS is progressing as a work item within 3GPP. An overview of the 3GPP activities related to the HLS is provided here. For the LLS, the story is less mature, but still making significant progress. Many industry groups including, 3GPP, eCPRI, xRAN, TIP, TTA, SCF, IEEE 1914, IEEE 802.1CM, are working on parts of the puzzle and specifications are already available or soon to be available from many of these groups. The final part of this document provides an overview of how these various aspects related to the LLS are developing....

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5G End-to-End Architecture Framework v2.0

This document delineates the requirements in terms of entities and functions that characterise the capabilities of an E2E (end-to-end) framework. Architectural perspectives and considerations associated with the service categories - eMBB, mIoT, URLLC - envisioned for 5G (Fifth Generation) underscore the delineation of the E2E framework requirements. These requirements are intended as guidance in the development of inter-operable and market enabling specifications for a 5G ecosystem. This version resolves the outstanding Security and Identity management issues from the first published version, adds new references associated with those parts, and makes no changes to the other sections.

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Definition of the Testing Framework for the NGMN 5G Pre-Commercial Network Trials

This document 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.

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5G Security – Package 3: Mobile Edge Computing / Low Latency / Consistent User Experience

NGMN has updated its report “5G Security – Package 3: Mobile Edge Computing / Low Latency / Consistent User Experience”. The original version was published in 2016. The most significant updates, in sections 1.10.2 and 2.2.2, have been made in response to constructive feedback received from ETSI TC LI, and concern the interplay of law enforcement (lawful interception, data retention etc) with edge computing and low latency solutions. We also recognise the new terminology “Multi-Access Edge Computing”.

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