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Performance Evaluation of 5G Ultra-Reliable and Low Latency Communications

5G mobile networks are envisioned to support ultra-reliable and low latency communications (URLLC), which is targeted for a packet transmission with 99.999% reliability and a user plane latency down to 0.5 ms. In this paper, a reliability model and a latency model for URLLC traffic are presented, along with some deterministic analysises providing the reliability requirements for each physical channels and the feasible nu-merologies for URLLC transmission. Meanwhile, system-level simulation is conducted with two metrics including the 5th percentile downlink and uplink Signal-to-Interference-and-Noise Ratio (SINR) values and the percentage of users satisfying the reliability and latency requirements. Furthermore, a resource selection based structure for physical uplink control channel (PUCCH) that satisfies the deterministic analysis is proposed and evaluated with link-level simulation, which shows the reliability can be met at the 5th percentile uplink SINR value provided by system-level simulation.