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학술대회 DMRS Design and Evaluation for 3GPP 5G New Radio in a High Speed Train Scenario
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저자
노고산, 회빙, 김준형, 정희상, 김일규
발행일
201712
출처
Global Communications Conference (GLOBECOM) 2017, pp.1-6
DOI
https://dx.doi.org/10.1109/GLOCOM.2017.8254568
협약과제
17HF1600, (통합)초연결 스마트 서비스를 위한 5G 이동통신 핵심기술개발, 정현규
초록
This paper proposes demodulation reference signal (DMRS) designs for the 3GPP 5G New Radio (NR) high speed train scenario. Considering a carrier frequency of 30 GHz, each DMRS design specifies the density and location of the DMRS symbols in the frequency- and time-domains. The proposed DMRS design sets are intended to support accurate channel estimation in a very high mobility environment up to 500 km/h while limiting DMRS overhead to an acceptable level. Throughout extensive link-level simulations, it is shown that satisfactory block error rate (BLER) and spectrum efficiency performances can be achieved by using the proposed DMRS design sets even with severe Doppler shift/spread.
키워드
5G, DMRS design, Doppler spread, High speed train, MmWave, Phase noise
KSP 제안 키워드
30 GHz, Block Error Rate(BLER), Carrier frequency, Channel estimation(CE), Demodulation reference signal, Design evaluation, Doppler Shift, Doppler spread, High Speed Train, Link level simulation, Spectrum efficiency