A radio communication method in a radio communication system including a base station apparatus and a terminal apparatus, the method including: generating a public information message including identification information of a surround base station apparatus of the base station apparatus, and instruction information for receiving communication parameter information used to communicate with the terminal and the surround base station apparatus from the surround base station apparatus, by the base station apparatus; transmitting the generated public information message, by the base station apparatus; receiving the public information message, by the terminal apparatus; and receiving the communication parameter information transmitted by the surround base station apparatus based on the instruction information included in the public information message, by the terminal apparatus.