Cell detection in high frequency band small cell networks

In this paper, we investigate cell detection schemes for a new high frequency band (HFB) radio access technology (RAT) based small cell network, which employs much wider channel bandwidth (e.g. 100MHz~2 GHz) than current LTE- Advanced systems, in order to provide Gbps-level throughput. Cell detection performances are compared in terms of expected coverage and detection overhead/latency at 28GHz channels. Furthermore, a novel UE polling based cell detection method, which exploits a higher beamforming gain and processing power at a base station, is proposed to guarantee robust coverage and fast cell detection in HFB small cell networks.