| 摘要 |
A control unit (102) in a radio base station (1A) receives from a radio terminal (2A) a measured W-CQI corresponding to a local sector, and also acquires the utilization ratio of a PDCCH corresponding to said sector. Also, in addition to receiving a measured W-CQI corresponding to the local sector, the control unit (102) in the radio base station (1A) acquires from other radio base stations (1B and 1C) utilization ratios of PDCCHs and PDSCHs corresponding to other sectors. Additionally, the control unit (102) in the radio base station (1A) estimates the PDCCH quality (SINR) corresponding to the local sector on the basis of a SINR obtained from the measured W-CQIs and also on the basis of the utilization ratios of PDCCHs and PDSCHs corresponding to other sectors. |
