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Abstract
One of the goals of the 5G Communication Automotive Research and innovation (5GCAR) project has been to evaluate and propose system architecture enhancements aiming at supporting the strict requirements of vehicle-to-everything (V2X) use cases. In this paper, we provide an overview of 3GPP 5G system architecture, which is used as a baseline architecture in the project, and we present the main architectural enhancements introduced by 5GCAR. The work of the project focused on the following categories: (i) end-to-end security, also including aspects of privacy; (ii) network orchestration and management; (iii) network procedures; (iv) edge computing enhancements; and (v) multi-connectivity cooperation. The enhancements introduced by 5GCAR to above-listed categories are discussed in this paper, while a more detailed analysis of some selected features is presented.
Highlights
The automotive sector is considered to be one of the most prominent verticals that will benefit from the capabilities of the upcoming 5G cellular networks [1,2]
The 5G system layer architecture will play a fundamental role in the delivery of C-V2X communications capable of providing and sustaining QoS tailored to advanced vehicular applications
An ensemble of notable feature is highlighted in 5G Communication Automotive Research and innovation (5GCAR) as critical for V2X communications
Summary
The automotive sector is considered to be one of the most prominent verticals that will benefit from the capabilities of the upcoming 5G cellular networks [1,2]. The H2020 5G PPP Phase 2 project 5G Communication Automotive Research and innovation (5GCAR) [3] worked towards the definition of enhancements in terms of system architecture, security, and privacy, targeting automotive applications. Among the possible use cases of these classes, 5GCAR considers five use cases (lane merge, see-through, network-assisted vulnerable pedestrian protection, high definition local map acquisition, and remote driving for automated parking) to derive the target requirements to be used to drive the network design as well as the final demonstration of the project outcomes [5]. One of the goals of 5GCAR is to study and propose target enhancements of the 3GPP 5G service-based architecture (SBA) [6] in order to support the large set of requirements of V2X applications.
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