Dynamic frequency-sharing with licensed-assisted access for 5g communication systems

Abstract

In order to meet various requirements of the 5th generation (5G) communication system, larger amounts of spectrum are required. Television White Space (TVWS) and Licensed-Assisted Access (LAA) can only utilize the specific frequency band as shared frequency and have no mechanism for sharing the other frequency bands to obtain more frequency resources. We have proposed a dynamic frequency-sharing system with wideband sensing to seek for available frequency band allocated for other wireless systems. In this paper, we propose a framework of the dynamic frequency-sharing in a 5G core network. We focus on the case where component functions of the dynamic frequency-sharing are configured in the base station. We also propose an application scheme of the dynamic frequency-sharing as an LAA extension. Furthermore, we explain a problem and its solution regarding interference with the primary user in the uplink by computer simulation.