WIRELESS BASE STATION, USER TERMINAL, WIRELESS COMMUNICATION SYSTEM AND INTERFERENCE ESTIMATION METHOD

摘要

The present invention is designed to make it possible to adequately estimate the interference level between uplink signals and downlink signals when different DL/UL configurations are applied between transmitting/receiving points. The interference estimation method of the present invention is an interference estimation method in a radio communication system in which an uplink signal from a user terminal (#1) to a radio base station (#1) and a downlink signal from a radio base station (#2) that neighbors the radio base station (#1) to user terminal (#2) are transmitted using a time division duplexing (TDD) scheme. The interference estimation method of the present invention includes the steps of receiving interference estimation resource information, which is used to estimate the interference level that the uplink signal from the user terminal (#1) to the radio base station (#1) receives from at least one of the downlink signal from the radio base station (#2) and an uplink signal from another user terminal that neighbors the radio base station (#1), and estimating the interference level based on the interference estimation resource information.