A terminal apparatus comprising: a communication unit configured to perform communication with a base station configured to form a plurality of beams and perform communication via one or more of the plurality of beams; and a control unit configured to - receive a beam-formed downlink reference signal, which is transmitted from the base station using the plurality of beams, and thereby acquire quality information for the plurality of beams, the quality information indicating quality being a beam quality index, BQI, value set by the base station for indicating a quality of a direction of the corresponding beam used for transmitting the beam-formed downlink reference signal, - select a connection candidate base station on a basis of the quality information, and - transmit a measurement report on a basis of a measurement report trigger related to the quality information, wherein the measurement report trigger is that there is a connection candidate base station for which the quality information is better than the quality information of a connected base station and wherein the measurement report includes the quality information of the connected base station and the connection candidate base station. a communication unit configured to perform communication with a base station configured to form a plurality of beams and perform communication via one or more of the plurality of beams; and a control unit configured to - receive a beam-formed downlink reference signal, which is transmitted from the base station using the plurality of beams, and thereby acquire quality information for the plurality of beams, the quality information indicating quality being a beam quality index, BQI, value set by the base station for indicating a quality of a direction of the corresponding beam used for transmitting the beam-formed downlink reference signal, - select a connection candidate base station on a basis of the quality information, and - transmit a measurement report on a basis of a measurement report trigger related to the quality information, wherein the measurement report trigger is that there is a connection candidate base station for which the quality information is better than the quality information of a connected base station and wherein the measurement report includes the quality information of the connected base station and the connection candidate base station. - receive a beam-formed downlink reference signal, which is transmitted from the base station using the plurality of beams, and thereby acquire quality information for the plurality of beams, the quality information indicating quality being a beam quality index, BQI, value set by the base station for indicating a quality of a direction of the corresponding beam used for transmitting the beam-formed downlink reference signal, - select a connection candidate base station on a basis of the quality information, and - transmit a measurement report on a basis of a measurement report trigger related to the quality information, wherein the measurement report trigger is that there is a connection candidate base station for which the quality information is better than the quality information of a connected base station and wherein the measurement report includes the quality information of the connected base station and the connection candidate base station.