Research Article
On the Flexible 5G Dense Deployment Air Interface for Mobile Broadband
@INPROCEEDINGS{10.4108/icst.5gu.2014.258101, author={Eeva L\aa{}hetkangas and Kari Pajukoski and Jaakko Vihri\aa{}l\aa{} and Esa Tiirola}, title={On the Flexible 5G Dense Deployment Air Interface for Mobile Broadband}, proceedings={1st International Conference on 5G for Ubiquitous Connectivity}, publisher={IEEE}, proceedings_a={5GU}, year={2014}, month={12}, keywords={3gpp 5g energy consumption frame structure harmonized ofdm latency local area lte rat subcarrier spacing tdd tti}, doi={10.4108/icst.5gu.2014.258101} }- Eeva Lähetkangas
Kari Pajukoski
Jaakko Vihriälä
Esa Tiirola
Year: 2014
On the Flexible 5G Dense Deployment Air Interface for Mobile Broadband
5GU
IEEE
DOI: 10.4108/icst.5gu.2014.258101
Abstract
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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