Method of controlling data transmission, radio system, controller, and base station

摘要

There is provided a radio system comprising a controller for controlling at least one base stations, a user terminal communicating with one or more base stations, and a serving base station for controlling data transmission of the user terminal over a control channel. The controller is configured to detect one or more interfering base stations of the user terminal, and to provide information on suppression of downlink transmission for the one or more interfering base stations of the user terminal; and the one or more interfering base stations are configured to suppress downlink transmission by controlling downlink transmission power of the interfering base stations at predetermined time intervals on the basis of the provided information from the controller when the user terminal receives downlink control channel transmission from the serving base station.