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학술대회 A Method of PRACH detection in mmWave 5G Communications system
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저자
김준우, 이용수, 문영진, 방승재, 문장원, 이희수
발행일
202210
출처
International Conference on Information and Communication Technology Convergence (ICTC) 2022, pp.718-720
DOI
https://dx.doi.org/10.1109/ICTC55196.2022.9952541
협약과제
22HH2200, 통신재난 및 긴급구조/치안용 대용량 이동형 이동통신 인프라 기술 개발, 이희수
초록
The Physical random access channel (PRACH) of the fifth generation of mobile communication (5G) with a new radio-access (NR) is composed of cyclic prefix (CP) and preamble sequence. While the CP of PRACH guarantees sufficient length for full sequence detection to PRACH detector, it also hampers finding out the PRACH start point since the CP itself causes a considerable pseudo-peak at PRACH detection. Ruling out this pseudo-peak using threshold contains risk of mis-judgement depending on fading environment or PRACH searching time offset. In this paper, we propose a comprehensive PRACH detection procedure to find out PRACH sequence and the start point of uplink correctly.
KSP 제안 키워드
5G communications, Communications system, Cyclic prefix(CP), Detection procedure, Fifth Generation(5G), Physical random access channel(PRACH), Preamble Sequence, Random access channel(RACH), Sequence Detection, fading environments, mobile communication