BASE STATION, PROCESSOR, COMMUNICATION CONTROL METHOD AND USER TERMINAL

摘要

In the present invention, in a mobile communication system that sends and receives wireless signals that include a reference signal for estimating a channel characteristic, a base station that communicates with a plurality of user terminals has a controller that changes a reference signal density, which is the density of the reference signal applied to communications with the plurality of user terminals. The controller calculates a statistical amount of communication quality information acquired for all of the plurality of user terminals, and changes the reference signal density on the basis of the statistical amount.