URLLC User Plane Latency Performance in New Radio

Daniel Maaz, Ana Galindo-Serrano, Salah-Eddine Elayoubi

Abstract: The 5-th Generation (5G) of wireless networks is expected to support a wide set of use cases with ultra-reliable and very-low latency requirements. New Radio (NR) system design and different numerologies (subcarrier spacings) are adopted in the 3rd Generation Partnership Project (3GPP) standards in order to satisfy these stringent requirements. In this paper we study i) the user-plane latency performance of Ultra-Reliable and Low-Latency Communications (URLLC) for 15, 30, 60 and 120 kHz numerologies; ii) the service availability that is considered as essential metric for measuring the performance of the 5G networks; iii) the impact of allocating a dedicated bandwidth to URLLC services on the latency targets of URLLC packets and on the throughput of the coexisting evolved Mobile Broadband (eMBB) services.