Session 9: OPE
Wednesday, 8 June 2022, 16:00-17:30
Session Chair: TBD ( , )
5GCroCo Barcelona Trial Site Results: Orchestration KPIs Measurements and Evaluation
Leonardo Lossi (NeXtworks, Italy); Pol Alemany (Centre Tecnològic de Telecomunicacions de Catalunya (CTTC/CERCA), Spain); Javier Fernandez Hidalgo (I2CAT, Spain); Francesca Moscatelli (Nextworks, Italy); Ricard Vilalta and Raul Muñoz (Centre Tecnològic de Telecomunicacions de Catalunya (CTTC/CERCA), Spain); Roshan Sedar (Centre Tecnològic de Telecomunicacions de Catalunya (CTTC), Spain); Miguel Catalan-Cid (i2CAT Foundation, Spain)
The 5GCroCo project has been working on aspects around vehicular communications taking into consideration different perspectives such as i) infrastructures with multiple administrative domains where to achieve the most efficient service deployment, and ii) the automotive services themselves for providing advanced functionalities to vehicular users. This article aims to present the results collected on top of the 5GCroCo Barcelona small-scale trial infrastructure during the experimental phases. In particular, the goal of the conducted experiments was to evaluate how the proposed orchestration solution works on top of a multi-domain infrastructure. Composite network slices, i.e., composed of multiple slice subnets and related network services (NSs) have been orchestrated and managed across the Barcelona multi-domain infrastructure and the different deployment iterations have been monitored to validate whether the Key Performance Indicators (KPIs) selected were accomplished.
Evaluating 5G Uplink Performance in Low Latency Video Streaming
Mikko Uitto (VTT Technical Research Centre of Finland Ltd, Finland); Antti Heikkinen (VTT Technical Research Centre of Finland, Finland)
In this paper, we evaluate the efficiency of low latency video streaming in a real standalone 5G test environment with a particular focus on uplink latency using UDP and TCP transport protocols. Furthermore, the evaluation comprise also congested scenario in which additional traffic is brought to the uplink reducing the network capacity, which is a common phenomenon in live mobile streaming from the field. Although 5G and beyond networking has brought higher capacity and reduced latency, the uplink is usually less prioritized in terms of network share. This limitation can generate a bottleneck in live video streaming use cases requiring low latency, such as delivering real time environmental data between vehicles in V2X scenarios or performing remote operations from a distance. The results gathered from the extensive set of evaluation with test cases indicate that 5G standalone has improved potential for low latency streaming and delay variation stays relatively satisfying level even in congested network scenarios.
Leveraging 5G in Cyber-Physical System for Low-Cost Robotic Telepresence
Kenichi Komatsu (University of Oulu & Nokia, Finland); Paula Alavesa (University of Oulu, Finland); Ari T. Pouttu (Centre for Wireless Communications University of Oulu, Finland); Antti Pauanne, Tuomo Hänninen and Olli Liinamaa (University of Oulu, Finland)
Our society relies on connectivity and free movement of labour and knowledge. The current pandemic has proven us that we cannot always achieve this with the means we are accustomed to. Luckily ubiquitous technologies have achieved the level of maturity required to give us a solid grounding for creating accessible solutions for telexistence. Teleconferencing using mobile phones and even remote operable mobility platforms for those, is not a new approach. However, there are only few openly available and fabricable full solutions for this. In this study we present an architecture and solutions for a situation awareness digital twin with physical interactive teleconference infrastructure by fabricable platform and private 5G mobile network. The telepresence platform can be controlled via immersive Virtual Reality (VR) or a smartphone with an interface that has been integrated to a mirror-world like virtual environment. We present preliminary findings of a technical evaluation and in addition discuss future improvements for better accessibility and other use cases.
Experimental Evaluation of NB-IoT Private Networks for Process Automation
Axel Sikora (University of Applied Sciences Offenburg, Germany); Nikolas Zeitler (Hahn-Schickard-Gesellschaft für Angewandte Forschung, Germany); Fabian Sowieja (Hochschule Offenburg, Germany); Heiko Koerte (N. A. T. GmbH, Germany); Holger Gaebler (Fraunhofer Heinrich Hertz Institut, Germany); Johannes Dommel (Fraunhofer Heinrich Hertz Institute, Germany); Mathias Kurth (Commsolid GmbH, Germany); Stefan Erben (SAMSON AG, Germany); Thomas Konrad (Commsolid GmbH, Germany)
NB-IoT is a 3GPP standardized cellular technology, adopted for 5G and optimized for mMTC.
Applications are anticipated around infrastructure monitoring, asset management, smart city and smart energy applications.
In this paper, we evaluate the suitability of NB-IoT for private (campus) networks in industrial environments, including complex cloud-based applications around process automation.
An end-to-end system has been developed, comprising of a sensor unit connected to a NB-IoT modem, a base station (gNodeB) equipped with a beamforming array and a local (private) network architecture comprising a sensor management system in the edge cloud.
The experimental study includes field tests in realistic industrial environments with latency, reliability and coverage measurements.
The results show a good suitability of NB-IoT for process automation with high scalability, low-power requirements and moderate timing behaviour, under difficult channel conditions.
Field Measurements to Study the Co-Existence of Geographically Limited Local Industrial Mobile TDD Networks
Reijo Ekman, Pekka Talmola, Juha Kalliovaara, Juhani Hallio, Petri Hyvärinen, Tibor Lakner, Tero Jokela and Jarkko Paavola (Turku University of Applied Sciences, Finland); Heidi Himmanen (Traficom, Finland)
Use of 4G and 5G technologies for local industrial networks has become feasible in recent years. This paper studies the co-existence of two geographically limited adjacent Time Division Duplex (TDD) local networks through a field measurement campaign. The networks have the same or different TDD frame configurations. The test setup developed to conduct the interference measurement campaign can be used to study both 4G and 5G TDD technologies. Measurement results indicate that non-synchronized networks produce interference and significant decrease in data throughput in neighboring networks. Thus, networks using TDD technology are recommended to use synchronized frame configurations to avoid interference. However,
local network applications and their requirements may differ between user organizations, and hence the uplink and downlink data rate requirements are different and may need different TDD frame configurations.