Random Access Preamble Design and Timing Advance Estimation for OTFS Systems in High-Mobility Scenarios
Xue Geng,
Ning Zhu,
Zhuo Chen
et al.
Abstract:The uplink timing synchronization is indispensable for establishing a reliable link between the base station and the user equipment (UE). To tackle this problem, a new random access preamble (RAP) waveform is designed for cellular communication systems operating in high-mobility scenarios for orthogonal time frequency space systems. Meanwhile, we also propose a scheme to detect access UEs and estimate the corresponding round-trip propagation delay (i.e., timing advance (TA)). Concretely, the RAP root sequence … Show more
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