MULTIANTENNA RADIO TRANSMITTING APPARATUS AND MULTIANTENNA RADIO TRANSMITTING METHOD

摘要

There are disclosed a multiantenna radio transmitting apparatus and others wherein control information can be transmitted with enhanced reliability while overheads of transport signals being reduced. This apparatus uses a transmission antenna (Tx) (119) to SDM transmit transport data (1) (CW1) and also uses a transmission antenna (120) to SDM transmit transport data (2) (CW2). In this apparatus, when the transmission quality of the transmission antenna (Tx) (119) is better than that of the transmission antenna (Tx) (120), the control information (2) related to the transport data (2) (CW2) is transmitted in a space division multiplex mode via the transmission antenna (Tx) (119), while the control information (1) related to the transport data (1) (CW1) is transmitted in a diversity mode.