Pipelined Multi-User IR-HARQ Scheme for Improved Latency Performance in URLLC
Rafael Santos,
Daniel Castanheira,
Adão Silva
et al.
Abstract:The demand for ultra-reliable low-latency communications (URLLC) has led to the adoption of grant-free (GF) access techniques by the 5G NR, with the goal of reducing uplink access time. When GF access is employed, the base station (BS) preallocates multiple transmission opportunities (TOs) that can be utilized by the user equipment (UE) as needed. However, this approach results in inefficient resource utilization as unused TOs are wasted. To overcome this inefficiency, the 5G NR allows the assignment of config… Show more
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