A terminal apparatus obtains first information associating a configured grant regarding a resource of an uplink shared channel of an LTM candidate cell with an uplink beam setting, and information of a condition of LTM execution associated with the LTM candidate cell, transmits an uplink reference signal to a handover destination base station apparatus of the LTM candidate cell, obtains second information regarding an uplink beam determined by the LTM candidate cell based on a measurement result of the uplink reference signal, when the condition of LTM execution is satisfied, specifies a configured grant to be used for uplink transmission based on the first information and the second information, without starting a random access procedure, and performs uplink transmission to the base station apparatus of the handover destination candidate using this.