BASE STATION, TERMINAL STATION, RADIO SYSTEM, RADIO CONTROL METHOD, AND STORAGE MEDIUM

摘要

This invention provides a base station, a terminal station, a radio system, a radio control method and a storage medium wherein the status of the use of a frequency band, which is allocated to another radio system or the use of which is permitted on a priority basis, can be estimated with high precision. The base station, the radio system of which is operative to estimate the status of the use of a frequency band which is allocated to another radio system or the use of which is permitted on a priority basis, comprises an estimating means for estimating the foregoing status of the use of the frequency band on the basis of a received signal power ratio of a received signal power value of the other radio system to a received signal power value of the above-said radio system in at least one sensing apparatus.