Laurent Thiebaut’s research while affiliated with SATT Paris-Saclay and other places

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Publications (4)


Perspectives on a 6G Architecture
  • Preprint

October 2022

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47 Reads

Rainer Liebhart

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Mansoor Shafi

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Gajan Shivanandan

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[...]

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Laurent Thiebaut

Mobile communications have been undergoing a generational change every ten years. Whilst we are just beginning to roll out 5G networks, significant efforts are planned to standardize 6G that is expected to be commercially introduced by 2030. This paper looks at the use cases for 6G and their impact on the network architecture to meet the anticipated performance requirements. The new architecture is based on integrating various network functions in virtual cloud environments, leveraging the advancement of artificial intelligence in all domains, integrating different sub-networks constituting the 6G system, and on enhanced means of exposing data and services to third parties.


Wireline–Wireless Convergence

May 2020

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143 Reads

Virtualization and the development of the 5G architecture, i.e. a 5GCore (5GC) capable to serve a great variety of Access Networks have triggered the industry to work on Wireless–Wireline convergence. As opposed to previous attempts that were focusing on convergence at policy control level, the 5GC‐based solution focuses on defining an interworking function, the Wireline Access Gateway Function (W‐AGF), that terminates the legacy Wireline Access interface on one of its sides and the 5GC interfaces N1/N2/N3 on its other side. This architecture enables the 5GC to serve Residential Gateways modified to support 5G protocols and procedures (5G RG) but also legacy unmodified Fixed Network Residential Gateways (FN RG). 5G RG can benefit of slicing as defined for 5GC but also of a Hybrid Access where 5G RG are simultaneously connected via 3GPP radio and via Wireline Access, ensuring thus higher throughput and reliability for the traffic of the customer premises. Fixed Wireless Access (5G RG connection via 3GPP radio) enables flexible deployment of a mobile RG (e.g. in public transport or for short‐lived events). A 5G RG and its Wireline Access interworking function, the W‐AGF, can together be used as a trusted non‐3GPP AN serving 3GPP User Equipment (smartphone) with managed Quality of Service and accurate location information (e.g. for home‐based charging). The Broadband Forum (BBF) and 3GPP deliver a first release of the corresponding specifications for March 2020 (3GPP R16) that will likely be improved in the next release (3GPP R17).


Sessions, User Plane, and QoS Management

March 2019

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27 Reads

This chapter defines the data connectivity provided by the Fifth Generation System (5GS) (Protocol Data Unit [PDU] Sessions, PDU Session continuity modes, traffic offloading, etc.). It then describes 5GS Quality of Service (QoS) framework (QoS Flows, parameters of the 5GS QoS, Reflective QoS, etc.). Finally, it gives an overview of session management including an overview on how applications can influence traffic routing and policy control for PDU Sessions.


Next Generation Network Architecture

March 2019

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52 Reads

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7 Citations

This chapter provides detailed insights into drivers and motivations for the new 5G System. It gives an overview of the System and radio access network (RAN) Architecture, architectural requirements, basic principles of the new architecture and the role of technology enablers in developing this new architecture. It provides a comparison with evolved packet system (EPS), describes the essence of the 5G System, newly introduced features and explains how interworking between EPS and 5G System will work in detail. This chapter also provides a detailed description of the key 5G System features including network slicing, data storage principles for improved network resiliency and information exposure, generic exposure framework, architectural enablers for mobile edge computing, support for 3rd Generation Partnership Project (3GPP) access and non‐3GPP access, fixed‐mobile convergence, support for internet protocol multimedia subsystem (IMS), short message service (SMS), location services, public warning system, policy and charging. It also includes a summary of the control and user plane protocol stacks used in the 5G System.

Citations (1)


... The rising need for Internet connectivity and applications goes beyond traditional modes of connectivity, such as 3G and 4G [1]. The heart of 5G New Radio (NR) lies in its promise as a complete solution that goes beyond traditional technologies [2]. This change is expected to be revolutionary in addressing the complex challenges presented by the ever-growing number of smart devices and the different types of applications that drive them [3]. ...

Reference:

5G and Internet of Things: Next-Gen Network Architecture
Next Generation Network Architecture
  • Citing Chapter
  • March 2019