상세정보
학술대회
DMRS Design and Evaluation for 3GPP 5G New Radio in a High Speed Train Scenario
- 발행일
- 201712
- 출처
- Global Communications Conference (GLOBECOM) 2017, pp.1-6
- 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.
- KSP 제안 키워드
- 30 GHz, Block Error Rate(BLER), Carrier frequency, Channel estimation(CE), Demodulation reference signal, Design evaluation, Doppler Shift, High Speed Train, Link level simulation, Spectrum efficiency, high mobility environment