On the flexible 5G dense deployment air interface for mobile broadband
5G for Ubiquitous Connectivity(2014)
摘要
In this paper we contemplate 5G frame structure for dense deployment. We discuss harmonized OFDM concept, in which the cyclic prefix length and subcarrier spacing are functions of carrier frequency while FFT size and base clock remain constant. The subframe structure consists of time separated control and data, enabling low latency, flexible UL/DL ratio switching and high spectral efficiency with low cost transceiver. Analysis shows that the overheads are relatively small. The subframe structure also allows extended sleep periods, enabling considerably reduced power consumption.
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关键词
5G mobile communication,Long Term Evolution,OFDM modulation,broadband networks,fast Fourier transforms,radio transceivers,5G frame structure,FFT size,base clock,carrier frequency,cyclic prefix length,flexible 5G dense deployment air interface,flexible UL-DL ratio switching,harmonized OFDM concept,high spectral efficiency,low latency,mobile broadband,power consumption reduction,sleep periods,subcarrier spacing,time separated control,time separated data,3GPP,5G,LTE,RAT,TDD,TTI,energy consumption,frame structure,harmonized OFDM,latency,local area,subcarrier spacing
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