| 摘要 |
PROBLEM TO BE SOLVED: To improve utilization efficiency of a radio transmission band in a radio communication system in an adaptive modulation system, in which a radio propagation path is redundantly constituted.SOLUTION: In a radio communication device 100 in an adaptive modulation system, a radio frame multiplex circuit 210 divides at least one of self-direction modulation system information which shows modulation systems of a first radio frame (main line TX data signal 212) and a second radio frame (standby line TX data signal 216) and transfer modulation system information which is fed back to a radio communication device of an opposite station when the first radio frame transmitted to the radio communication device of the opposite station via a first line (main line) and the second radio frame transmitted to the radio communication device of the opposite station via a second radio line (standby line) are generated. One of the divided modulation system information is multiplexed to the first radio frame and the other is multiplexed to the second radio frame. |
