A radio communication method including: transmitting first information from a first radio station to a second radio station before determining an activation of a second logical processing entity that is to be activated in a first processing layer of the second radio station in association with a first logical processing entity that has been activated in the first processing layer of the second radio station, the first information relating to the activation of the second logical processing entity, the first information being transmitted using a first control signal in a higher layer of the first processing layer, transmitting, when determining the activation of the second logical processing entity, second information for instructing the activation from the first radio station to the second radio station, the second information being transmitted using a second control signal in the first processing layer.