Received power estimating apparatus, received power estimating method, program, sensor station, and wireless system

摘要

The present invention is directed to a received power estimation device for estimating received power at a time when a secondary radio signal transmitted from a transmitter of a secondary radio system is received in a receiver of a primary radio system while a frequency allocated to the primary radio system is shared with the secondary radio system, wherein the received power estimation device includes compensation means compensating a received power estimate of the secondary radio signal at the receiver of the primary radio system, the received power estimate of the secondary radio signal being calculated using a path loss estimate from the transmitter of the secondary radio system to the receiver of the primary radio system, using the measured received power of the secondary radio signal measured in a near-transmitter sensor station that is located around the transmitter of the secondary radio system.