A multicast data wireless communication method for transmitting multicast data by using a plurality of frequency bands, the method comprising: Multiple Description coding the multicast data comprising partitioning the multicast data to obtain a plurality of pieces of multiple description code data; transmission frequency setting to set, for each of a plurality of base stations, a plurality of transmission carrier frequencies at which the plurality of pieces of multiple description code data are to be transmitted, wherein each transmission carrier frequency is for transmitting one said piece of multiple description code'data; multiple description code data transmitting, wherein each of the plurality of base stations is operable to concurrently transmit the plurality of pieces of multiple description code data by using the plurality of transmission carrier frequencies set by the transmission frequency setting; and multiple description code data receiving, by a terminal, one or more pieces of multiple description code data transmitted from one of the plurality of base stations, wherein following receipt of a single piece of received multiple description code data, decoding by the terminal to obtain a valid reproduction of the multicast data, and wherein following receipt of more than one piece of received multiple description code data, decoding by the terminal to obtain a valid reproduction of the multicast data having a higher quality than the reproduction obtained from a single piece of data, wherein when the terminal performs a handover, a handover-source base station from among the plurality of base stations transmits to the terminal a handover instruction that includes the plurality of transmission carrier frequencies, a handover-destination base station from among the plurality of base stations waits for a handover completion notification from the terminal at the plurality of transmission carrier frequencies, the terminal sequentially selects frequencies from the plurality of transmission carrier frequencies included in the handover instruction so as to execute a handover process, and transmits the handover completion notification to the handover-destination base station at a transmission carrier frequency with which the base station is detected. Multiple Description coding the multicast data comprising partitioning the multicast data to obtain a plurality of pieces of multiple description code data; transmission frequency setting to set, for each of a plurality of base stations, a plurality of transmission carrier frequencies at which the plurality of pieces of multiple description code data are to be transmitted, wherein each transmission carrier frequency is for transmitting one said piece of multiple description code'data; multiple description code data transmitting, wherein each of the plurality of base stations is operable to concurrently transmit the plurality of pieces of multiple description code data by using the plurality of transmission carrier frequencies set by the transmission frequency setting; and multiple description code data receiving, by a terminal, one or more pieces of multiple description code data transmitted from one of the plurality of base stations, a handover-source base station from among the plurality of base stations transmits to the terminal a handover instruction that includes the plurality of transmission carrier frequencies, a handover-destination base station from among the plurality of base stations waits for a handover completion notification from the terminal at the plurality of transmission carrier frequencies, the terminal sequentially selects frequencies from the plurality of transmission carrier frequencies included in the handover instruction so as to execute a handover process, and transmits the handover completion notification to the handover-destination base station at a transmission carrier frequency with which the base station is detected.