Private 5G: The Future of Industrial Wireless

High-performance wireless communication is crucial in digital transformation of industrial systems which is driven by Industry 4.0 and the Industrial Internet initiatives. Among the candidate industrial wireless technologies, 5G (cellular/mobile) holds significant potential. Operation of private (non-public) 5G networks in industrial environments is promising to fully unleash this potential. This article provides a technical overview of private 5G networks. It introduces the concept and functional architecture of private 5G while highlighting the key benefits and industrial use-cases. It explores spectrum opportunities for private 5G networks. It also discusses design aspects of private 5G along with the key challenges. Finally, it explores the emerging standardization and open innovation ecosystem for private 5G.