Minimizing Energy Consumption for 5G NR Beam Management for RedCap Devices

In 5G New Radio (NR), beam management entails periodic and continuous transmission and reception of control signals in the form of synchronization signal blocks (SSBs), used to perform initial access and/or channel estimation. However, this procedure demands continuous energy consumption, which is p...

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Bibliographic Details
Published inarXiv.org
Main Authors Rawat, Manishika, Pagin, Matteo, Giordani, Marco, Louis-Adrien Dufrene, Lampin, Quentin, Zorzi, Michele
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 26.09.2023
Subjects
5G mobile communication
Devices
Energy consumption
Internet of Things
Optimization
Parameters
Synchronism
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Summary:In 5G New Radio (NR), beam management entails periodic and continuous transmission and reception of control signals in the form of synchronization signal blocks (SSBs), used to perform initial access and/or channel estimation. However, this procedure demands continuous energy consumption, which is particularly challenging to handle for low-cost, low-complexity, and battery-constrained devices, such as RedCap devices to support mid-market Internet of Things (IoT) use cases. In this context, this work aims at reducing the energy consumption during beam management for RedCap devices, while ensuring that the desired Quality of Service (QoS) requirements are met. To do so, we formalize an optimization problem in an Indoor Factory (InF) scenario to select the best beam management parameters, including the beam update periodicity and the beamwidth, to minimize energy consumption based on users' distribution and their speed. The analysis yields the regions of feasibility, i.e., the upper limit(s) on the beam management parameters for RedCap devices, that we use to provide design guidelines accordingly.
ISSN:2331-8422