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Conference Paper
DMRS Design and Evaluation for 3GPP 5G New Radio in a High Speed Train Scenario
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- Authors
- Gosan Noh, Bing Hui, Junhyeong Kim, Hee Sang Chung, Ilgyu Kim
- Issue Date
- 2017-12
- Citation
- Global Communications Conference (GLOBECOM) 2017, pp.1-6
- Language
- English
- Type
- Conference Paper
- Abstract
- 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 Keywords
- 30 GHz, Block Error Rate(BLER), Carrier frequency, Channel estimation(CE), Demodulation reference signal, Design evaluation, Doppler Shift, Link level simulation, Spectrum efficiency, high mobility environment, high-speed trains