Path loss calculation method, path loss calculation device, path loss calculation program, wireless communication system, spectrum manager

摘要

The spectrum manager manages a secondary system that shares a frequency with the primary system. The network communication unit receives the measured value of the signal reception power of the secondary system measured by the monitoring station, and holds it in the measurement result storage unit. The path loss estimation unit estimates the path loss at the first frequency, and the path loss correction unit measures the reception power measurement value of the radio signal of the secondary transmission station measured at the second frequency different from the first frequency, or the primary The path loss estimated value is measured and corrected using the received power measurement value of the radio signal of the secondary transmitting station measured at a time when the system is not used. The allowable transmission power setting unit calculates the allowable transmission power of the secondary transmission station using the actually measured path loss estimated value.